diff --git a/lib/common/constant.ts b/lib/common/constant.ts
index d578059..64f34fa 100644
--- a/lib/common/constant.ts
+++ b/lib/common/constant.ts
@@ -1,6 +1,7 @@
 export const DoubleUnicodePrefixReg = /^[\uD800-\uDBFF]$/;
 export const DoubleUnicodeSuffixReg = /^[\uDC00-\uDFFF]$/;
 export const DoubleUnicodeReg = /[\uD800-\uDBFF][\uDC00-\uDFFF]/g;
+export const DoubleUnicodeCharReg = /^[\uD800-\uDBFF][\uDC00-\uDFFF]$/g;
 export const enum Probability {
   Unknown = 1e-13,
   Rule = 1e-12,
diff --git a/lib/common/segmentit/index.ts b/lib/common/segmentit/index.ts
index c297eb2..2ac113b 100644
--- a/lib/common/segmentit/index.ts
+++ b/lib/common/segmentit/index.ts
@@ -9,6 +9,7 @@ import { minTokenization } from "./min-tokenization";
 import { reverseMaxMatch } from "./reverse-max-match";
 import { Priority } from "@/common/constant";
 import type { SurnameMode } from "../type";
+import { splitString, stringLength } from "../utils";
 
 export const enum TokenizationAlgorithm {
   ReverseMaxMatch = 1,
@@ -69,12 +70,12 @@ export class AC {
   // 构建 trie 树
   buildTrie(patternList: Pattern[]) {
     for (let pattern of patternList) {
-      const { zh } = pattern;
+      const zhChars = splitString(pattern.zh);
       let cur = this.root;
-      for (let i = 0; i < zh.length; i++) {
-        let c = zh.charAt(i);
+      for (let i = 0; i < zhChars.length; i++) {
+        let c = zhChars[i];
         if (!cur.children.has(c)) {
-          const trieNode = new TrieNode(cur, zh.slice(0, i), c);
+          const trieNode = new TrieNode(cur, zhChars.slice(0, i).join(''), c);
           cur.children.set(c, trieNode);
           this.addNodeToQueues(trieNode);
         }
@@ -161,8 +162,9 @@ export class AC {
   match(text: string, surname: SurnameMode) {
     let cur = this.root;
     let result: MatchPattern[] = [];
-    for (let i = 0; i < text.length; i++) {
-      let c = text.charAt(i);
+    const zhChars = splitString(text);
+    for (let i = 0; i < zhChars.length; i++) {
+      let c = zhChars[i];
 
       while (cur !== null && !cur.children.has(c)) {
         cur = cur.fail as TrieNode;
@@ -220,9 +222,9 @@ export class AC {
     if (algorithm === TokenizationAlgorithm.ReverseMaxMatch) {
       return reverseMaxMatch(patterns);
     } else if (algorithm === TokenizationAlgorithm.MinTokenization) {
-      return minTokenization(patterns, text.length);
+      return minTokenization(patterns, stringLength(text));
     }
-    return maxProbability(patterns, text.length);
+    return maxProbability(patterns, stringLength(text));
   }
 }
 
diff --git a/lib/common/utils.ts b/lib/common/utils.ts
index 3998e38..f69d0a1 100644
--- a/lib/common/utils.ts
+++ b/lib/common/utils.ts
@@ -1,7 +1,11 @@
-import { DoubleUnicodePrefixReg, DoubleUnicodeSuffixReg, DoubleUnicodeReg } from './constant';
+import {
+  DoubleUnicodePrefixReg,
+  DoubleUnicodeSuffixReg,
+  DoubleUnicodeReg,
+} from "./constant";
 
 export function stringLength(text: string) {
-  return text.replace(DoubleUnicodeReg, '_').length;
+  return text.replace(DoubleUnicodeReg, "_").length;
 }
 
 // 双音节字符处理
@@ -10,7 +14,10 @@ export function splitString(text: string): string[] {
   let i = 0;
   while (i < text.length) {
     const char = text.charAt(i);
-    if (DoubleUnicodePrefixReg.test(char) && DoubleUnicodeSuffixReg.test(text.charAt(i + 1))) {
+    if (
+      DoubleUnicodePrefixReg.test(char) &&
+      DoubleUnicodeSuffixReg.test(text.charAt(i + 1))
+    ) {
       result.push(text.substring(i, i + 2));
       i += 2;
     } else {
@@ -21,10 +28,46 @@ export function splitString(text: string): string[] {
   return result;
 }
 
+// todo: 双 unicode 编码字符的适配
 export function isZhChar(char: string) {
-  if (typeof char !== 'string') {
+  if (typeof char !== "string") {
     return false;
   }
   let code = char.charCodeAt(0);
   return code >= 19968 && code <= 40869;
 }
+
+export class FastDictFactory {
+  NumberDICT: string[];
+  StringDICT: Map<string, string>;
+
+  constructor() {
+    this.NumberDICT = [];
+    this.StringDICT = new Map();
+  }
+
+  get(word: string): string {
+    if (word.length > 1) {
+      return this.StringDICT.get(word) as string;
+    } else {
+      const code = word.charCodeAt(0);
+      return this.NumberDICT[code];
+    }
+  }
+
+  set(word: string | number, pinyin: string) {
+    if (typeof word === 'number') {
+      this.NumberDICT[word] = pinyin;
+    } else if (word.length > 1) {
+      this.StringDICT.set(word, pinyin);
+    } else {
+      const code = word.charCodeAt(0);
+      this.NumberDICT[code] = pinyin;
+    }
+  }
+
+  clear() {
+    this.NumberDICT = [];
+    this.StringDICT.clear();
+  }
+}
\ No newline at end of file
diff --git a/lib/core/custom/index.ts b/lib/core/custom/index.ts
index 1139ed3..5ae09dd 100644
--- a/lib/core/custom/index.ts
+++ b/lib/core/custom/index.ts
@@ -1,10 +1,10 @@
 import { acTree } from '@/common/segmentit';
 import { Probability, Priority } from '@/common/constant';
-import { splitString, stringLength } from '@/common/utils';
+import { FastDictFactory, splitString, stringLength } from '@/common/utils';
 import DICT1 from '@/data/dict1';
 let customDict: { [key: string]: string } = {};
-let customMultipleDict: string[] = [];
-let customPolyphonicDict: string[] = [];
+const customMultipleDict = new FastDictFactory();
+const customPolyphonicDict = new FastDictFactory();
 
 type CustomHandleType = 'add' | 'replace';
 
@@ -29,20 +29,20 @@ const CustomDictName = Symbol('custom');
  * @param {CustomPinyinOptions} options multiple/polyphonic 对于 customPinyin 补充词汇的处理
  */
 export function customPinyin(
-  config: { [key: string]: string } = {},
+  config: { [word: string]: string } = {},
   options?: CustomPinyinOptions
 ) {
-  const keys = Object.keys(config).sort(
-    (key1, key2) => stringLength(key2) - stringLength(key1)
+  const words = Object.keys(config).sort(
+    (word1, word2) => stringLength(word2) - stringLength(word1)
   );
-  keys.forEach((key) => {
-    customDict[key] = config[key];
+  words.forEach((word) => {
+    customDict[word] = config[word];
   });
-  const customPatterns = Object.keys(customDict).map((key) => ({
-    zh: key,
-    pinyin: customDict[key],
-    probability: Probability.Custom + stringLength(key),
-    length: key.length,
+  const customPatterns = Object.keys(customDict).map((word) => ({
+    zh: word,
+    pinyin: customDict[word],
+    probability: Probability.Custom + stringLength(word),
+    length: stringLength(word),
     priority: Priority.Custom,
     dict: CustomDictName,
   }));
@@ -58,23 +58,21 @@ export function customPinyin(
 
 function addCustomConfigToDict(
   config: { [key: string]: string },
-  dict: string[],
+  dict: FastDictFactory,
   handleType: CustomHandleType
 ) {
-  for (let key in config) {
-    const pinyins = config[key];
-    splitString(key).forEach((word, index) => {
+  for (let word in config) {
+    const pinyins = config[word];
+    splitString(word).forEach((char, index) => {
       const pinyin = pinyins.split(' ')[index] || '';
-      const wordCode = word.charCodeAt(0);
-      if (handleType === 'replace' || (handleType === 'add' && !dict[wordCode] && !DICT1[wordCode])) {
+      if (handleType === 'replace' || (handleType === 'add' && !dict.get(char) && !DICT1.get(char))) {
         // 直接覆盖原词典
-        dict[wordCode] = pinyin;
+        dict.set(char, pinyin);
       } else {
         // 补充至原词典
-        dict[wordCode] = dict[wordCode] || DICT1[wordCode];
-        if (!dict[wordCode].split(' ').includes(pinyin)) {
-          dict[wordCode] += ` ${pinyin}`;
-          dict[wordCode] = dict[wordCode].trim();
+        dict.set(char, dict.get(char) || DICT1.get(char));
+        if (!dict.get(char).split(' ').includes(pinyin)) {
+          dict.set(char, `${dict.get(char)} ${pinyin}`.trim());
         }
       }
     });
@@ -91,15 +89,15 @@ export const getCustomPolyphonicDict = () => {
 
 export function clearCustomDict(dict: CustomDictType | CustomDictType[]) {
   if (dict === 'pinyin' || dict.indexOf('pinyin') !== -1) {
-    Object.keys(customDict).forEach(function (key) {
-      delete customDict[key];
+    Object.keys(customDict).forEach(function (word) {
+      delete customDict[word];
     });
     acTree.removeDict(CustomDictName);
   }
   if (dict === 'multiple' || dict.indexOf('multiple') !== -1) {
-    customMultipleDict.length = 0;
+    customMultipleDict.clear();
   }
   if (dict === 'polyphonic' || dict.indexOf('polyphonic') !== -1) {
-    customPolyphonicDict.length = 0;
+    customPolyphonicDict.clear();
   }
 }
\ No newline at end of file
diff --git a/lib/core/dict/index.ts b/lib/core/dict/index.ts
index 4051128..f2550a8 100644
--- a/lib/core/dict/index.ts
+++ b/lib/core/dict/index.ts
@@ -26,36 +26,36 @@ export function addDict(dict: DICT | {}, options?: string | DictOptions) {
   const name = typeof options === "object" ? options.name : options;
   const dictName = name || DefaultName;
   const dict1Handle = (options as DictOptions)?.dict1 || "add";
-  for (let key in dict as DICT) {
-    const value = (dict as DICT)[key];
+  for (let word in dict as DICT) {
+    const value = (dict as DICT)[word];
     const pinyin = Array.isArray(value) ? value[0] : value;
-    if (stringLength(key) === 1) {
+    if (stringLength(word) === 1) {
       addToOriginDict(
         dictName,
-        key,
+        word,
         pinyin,
         dict1Handle
       );
     }
     if (Array.isArray(value)) {
       patterns.push({
-        zh: key,
+        zh: word,
         pinyin,
         probability:
           typeof value[1] === "number"
             ? value[1]
-            : Probability.DICT * key.length * key.length,
-        length: key.length,
+            : Probability.DICT * stringLength(word) * stringLength(word),
+        length: stringLength(word),
         priority: Priority.Normal,
         dict: dictName,
         pos: typeof value[2] === "string" ? value[2] : "",
       });
     } else {
       patterns.push({
-        zh: key,
+        zh: word,
         pinyin,
-        probability: Probability.DICT * key.length * key.length,
-        length: key.length,
+        probability: Probability.DICT * stringLength(word) * stringLength(word),
+        length: stringLength(word),
         priority: Priority.Normal,
         dict: dictName,
       });
@@ -71,7 +71,7 @@ export function removeDict(dictName?: string) {
 
 function addToOriginDict(
   dict: string | Symbol,
-  key: string,
+  char: string,
   pinyin: string,
   handle: "add" | "replace" | "ignore" = "add"
 ) {
@@ -79,26 +79,25 @@ function addToOriginDict(
     originDictMap.set(dict, {})
   }
   const originDict = originDictMap.get(dict)!;
-  const code = key.charCodeAt(0);
-  if (!originDict[key]) {
-    originDict[key] = DICT1[code] as string;
+  if (!originDict[char]) {
+    originDict[char] = DICT1.get(char) as string;
   }
   if (handle === "add") {
-    if (DICT1[code] && !DICT1[code].split(' ').includes(pinyin)) {
-      DICT1[code] += ` ${pinyin}`;
-    } else if (!DICT1[code]) {
-      DICT1[code] = pinyin;
+    const existedPinyin = DICT1.get(char);
+    if (existedPinyin && !existedPinyin.split(' ').includes(pinyin)) {
+      DICT1.set(char, `${existedPinyin} ${pinyin}`);
+    } else if (!DICT1.get(char)) {
+      DICT1.set(char, pinyin);
     }
   } else if (handle === "replace") {
-    DICT1[code] = pinyin;
+    DICT1.set(char, pinyin);
   }
 }
 
 function removeOriginDict(dict: string | Symbol) {
   const originDict = originDictMap.get(dict) || {};
-  for (let key in originDict) {
-    const code = key.charCodeAt(0);
-    DICT1[code] = originDict[key];
-    delete originDict[key];
+  for (let char in originDict) {
+    DICT1.set(char, originDict[char]);
+    delete originDict[char];
   }
 }
diff --git a/lib/core/pinyin/handle.ts b/lib/core/pinyin/handle.ts
index 9305eb0..54d3597 100644
--- a/lib/core/pinyin/handle.ts
+++ b/lib/core/pinyin/handle.ts
@@ -13,22 +13,20 @@ import { SingleWordResult } from "../../common/type";
 import type { SurnameMode } from "../../common/type";
 import { acTree, TokenizationAlgorithm } from "../../common/segmentit";
 import {
-  DoubleUnicodePrefixReg,
-  DoubleUnicodeSuffixReg,
   Priority,
 } from "@/common/constant";
+import { splitString } from "@/common/utils";
 
 /**
  * @description: 获取单个字符的拼音
- * @param {string} word
+ * @param {string} char
  * @return {string}
  */
-type GetSingleWordPinyin = (word: string) => string;
-export const getSingleWordPinyin: GetSingleWordPinyin = (word) => {
-  const wordCode = word.charCodeAt(0);
-  const pinyin = DICT1[wordCode];
+type GetSingleWordPinyin = (char: string) => string;
+export const getSingleWordPinyin: GetSingleWordPinyin = (char) => {
+  const pinyin = DICT1.get(char);
   // 若查到, 则返回第一个拼音; 若未查到, 返回原字符
-  return pinyin ? pinyin.split(" ")[0] : word;
+  return pinyin ? pinyin.split(" ")[0] : char;
 };
 
 export const getPinyin = (
@@ -39,13 +37,14 @@ export const getPinyin = (
 ): SingleWordResult[] => {
   const matches = acTree.search(word, surname, segmentit);
   let matchIndex = 0;
-  for (let i = 0; i < word.length; ) {
+  const zhChars = splitString(word);
+  for (let i = 0; i < zhChars.length; ) {
     const match = matches[matchIndex];
     if (match && i === match.index) {
       if (match.length === 1 && match.priority <= Priority.Normal) {
-        const char = word[i];
+        const char = zhChars[i];
         let pinyin: string = "";
-        pinyin = processSepecialPinyin(char, word[i - 1], word[i + 1]);
+        pinyin = processSepecialPinyin(char, zhChars[i - 1], zhChars[i + 1]);
         list[i] = {
           origin: char,
           result: pinyin,
@@ -59,32 +58,21 @@ export const getPinyin = (
       const pinyins = match.pinyin.split(" ");
       let pinyinIndex = 0;
       for (let j = 0; j < match.length; j++) {
-        if (
-          DoubleUnicodePrefixReg.test(match.zh[j - 1]) &&
-          DoubleUnicodeSuffixReg.test(match.zh[j])
-        ) {
-          list[i + j] = {
-            origin: match.zh[j],
-            result: "",
-            isZh: true,
-            originPinyin: "",
-          };
-        } else {
-          list[i + j] = {
-            origin: match.zh[j],
-            result: pinyins[pinyinIndex],
-            isZh: true,
-            originPinyin: pinyins[pinyinIndex],
-          };
-          pinyinIndex++;
-        }
+        const zhChars = splitString(match.zh);
+        list[i + j] = {
+          origin: zhChars[j],
+          result: pinyins[pinyinIndex],
+          isZh: true,
+          originPinyin: pinyins[pinyinIndex],
+        };
+        pinyinIndex++;
       }
       i += match.length;
       matchIndex++;
     } else {
-      const char = word[i];
+      const char = zhChars[i];
       let pinyin: string = "";
-      pinyin = processSepecialPinyin(char, word[i - 1], word[i + 1]);
+      pinyin = processSepecialPinyin(char, zhChars[i - 1], zhChars[i + 1]);
       list[i] = {
         origin: char,
         result: pinyin,
@@ -117,18 +105,17 @@ const getPinyinWithoutTone: GetPinyinWithoutTone = (pinyin) => {
 
 /**
  * @description: 获取单字符的多音拼音
- * @param {string} word
+ * @param {string} char
  * @return {WordResult[]}
  */
-type GetAllPinyin = (word: string, surname?: SurnameMode) => string[];
-export const getAllPinyin: GetAllPinyin = (word, surname = "off") => {
-  const wordCode = word.charCodeAt(0);
+type GetAllPinyin = (char: string, surname?: SurnameMode) => string[];
+export const getAllPinyin: GetAllPinyin = (char, surname = "off") => {
   const customMultpileDict = getCustomMultpileDict();
-  let pinyin = DICT1[wordCode] ? DICT1[wordCode].split(" ") : [];
-  if (customMultpileDict[wordCode]) {
-    pinyin = customMultpileDict[wordCode].split(" ");
+  let pinyin = DICT1.get(char) ? DICT1.get(char).split(" ") : [];
+  if (customMultpileDict.get(char)) {
+    pinyin = customMultpileDict.get(char).split(" ");
   } else if (surname !== "off") {
-    const surnamePinyin = Surnames[word];
+    const surnamePinyin = Surnames[char];
     if (surnamePinyin) {
       pinyin = [surnamePinyin].concat(
         pinyin.filter((py) => py !== surnamePinyin)
diff --git a/lib/core/pinyin/index.ts b/lib/core/pinyin/index.ts
index 0220e48..d0b5629 100644
--- a/lib/core/pinyin/index.ts
+++ b/lib/core/pinyin/index.ts
@@ -1,3 +1,4 @@
+import { stringLength } from "@/common/utils";
 import { TokenizationAlgorithm } from "../../common/segmentit";
 import type {
   SingleWordResult,
@@ -13,7 +14,6 @@ import {
   middlewareToneType,
   middlewareV,
   middlewareType,
-  middlewareDoubleUnicode,
   middlewareToneSandhi,
 } from "./middlewares";
 
@@ -241,7 +241,7 @@ function pinyin(
     options.nonZh = "removed";
   }
 
-  let list: SingleWordResult[] = Array(word.length);
+  let list: SingleWordResult[] = Array(stringLength(word));
 
   list = getPinyin(
     word,
@@ -253,9 +253,6 @@ function pinyin(
   // 一和不变调处理
   list = middlewareToneSandhi(list, options.toneSandhi as boolean);
 
-  // 双 unicode 编码字符处理
-  list = middlewareDoubleUnicode(list);
-
   // nonZh 参数及 removeNonZh 参数
   list = middleWareNonZh(list, options);
 
diff --git a/lib/core/pinyin/middlewares.ts b/lib/core/pinyin/middlewares.ts
index 689a4c0..05c5c75 100644
--- a/lib/core/pinyin/middlewares.ts
+++ b/lib/core/pinyin/middlewares.ts
@@ -209,30 +209,6 @@ export const middlewareType = (
   return list.map((item) => item.result).join(options.separator);
 };
 
-// 处理双 Unicode 编码字符，将第二个删除
-export const middlewareDoubleUnicode = (
-  list: SingleWordResult[]
-): SingleWordResult[] => {
-  for (let i = list.length - 2; i >= 0; i--) {
-    const cur = list[i];
-    const next = list[i + 1];
-    if (
-      DoubleUnicodePrefixReg.test(cur.origin) &&
-      DoubleUnicodeSuffixReg.test(next.origin)
-    ) {
-      cur.origin += next.origin;
-      cur.result += next.result;
-      cur.originPinyin = cur.result;
-      next.delete = true;
-      i--;
-    }
-  }
-  list = list.filter((item) => {
-    return !item.delete;
-  });
-  return list;
-};
-
 // 是否开启变调
 export const middlewareToneSandhi = (
   list: SingleWordResult[],
diff --git a/lib/core/polyphonic/index.ts b/lib/core/polyphonic/index.ts
index 9de991d..b5514bd 100644
--- a/lib/core/polyphonic/index.ts
+++ b/lib/core/polyphonic/index.ts
@@ -5,7 +5,6 @@ import {
   middlewarePattern,
   middlewareToneType,
   middlewareV,
-  middlewareDoubleUnicode,
 } from '@/core/pinyin/middlewares';
 import DICT1 from '@/data/dict1';
 import {
@@ -177,8 +176,6 @@ function polyphonic(
 
   let list = getPolyphonicList(text);
 
-  list = middlewareDoubleUnicode(list);
-
   // nonZh 参数及 removeNonZh 参数
   list = middleWareNonZh(list, options);
 
@@ -206,14 +203,13 @@ function polyphonic(
 
 // 获取每个字多音字的数组
 const getPolyphonicList = (text: string): SingleWordResult[] => {
-  return splitString(text).map((word) => {
-    const wordCode = word.charCodeAt(0);
+  return splitString(text).map((char) => {
     const customPolyphonicDict = getCustomPolyphonicDict();
-    const pinyin = customPolyphonicDict[wordCode] || DICT1[wordCode] || word;
+    const pinyin = customPolyphonicDict.get(char) || DICT1.get(char) || char;
     return {
-      origin: word,
+      origin: char,
       result: pinyin,
-      isZh: pinyin !== word,
+      isZh: pinyin !== char,
       originPinyin: pinyin,
     };
   });
diff --git a/lib/data/dict1.ts b/lib/data/dict1.ts
index 6e93ff5..75bbd48 100644
--- a/lib/data/dict1.ts
+++ b/lib/data/dict1.ts
@@ -1,3 +1,5 @@
+import { FastDictFactory } from "@/common/utils";
+
 const map: { [key: string]: number[] } = {
   'bǎng páng pāng': [33152],
   líng: [
@@ -6076,12 +6078,14 @@ const map: { [key: string]: number[] } = {
   'kuí wā': [17839],
 };
 
-const DICT1: string[] = [];
+const DICT1 = new FastDictFactory();
+
 Object.keys(map).forEach((key) => {
   const codes = map[key];
   for (let code of codes) {
-    DICT1[code] = key;
+    DICT1.set(code, key);
   }
 });
 
 export default DICT1;
+
diff --git a/test/dict.test.js b/test/dict.test.js
index 958c1f7..4bafdb6 100644
--- a/test/dict.test.js
+++ b/test/dict.test.js
@@ -60,4 +60,14 @@ describe("addDict", () => {
     expect(result).to.be.equal("yī");
     removeDict();
   });
+
+  it("[addDict]2 unicode dict", () => {
+    const stringDict = {
+      𧒽: 'lei'
+    }
+    addDict(stringDict, { name: 'double-unicode-dict' });
+    const result = pinyin("𧒽");
+    expect(result).to.be.equal("lei");
+    removeDict();
+  });
 });
diff --git a/types/common/constant.d.ts b/types/common/constant.d.ts
index 1defca4..09de223 100644
--- a/types/common/constant.d.ts
+++ b/types/common/constant.d.ts
@@ -1,6 +1,7 @@
 export declare const DoubleUnicodePrefixReg: RegExp;
 export declare const DoubleUnicodeSuffixReg: RegExp;
 export declare const DoubleUnicodeReg: RegExp;
+export declare const DoubleUnicodeCharReg: RegExp;
 export declare const enum Probability {
     Unknown = 1e-13,
     Rule = 1e-12,
diff --git a/types/common/utils.d.ts b/types/common/utils.d.ts
index 2febf7f..ddd82c9 100644
--- a/types/common/utils.d.ts
+++ b/types/common/utils.d.ts
@@ -1,3 +1,11 @@
 export declare function stringLength(text: string): number;
 export declare function splitString(text: string): string[];
 export declare function isZhChar(char: string): boolean;
+export declare class FastDictFactory {
+    NumberDICT: string[];
+    StringDICT: Map<string, string>;
+    constructor();
+    get(word: string): string;
+    set(word: string | number, pinyin: string): void;
+    clear(): void;
+}
diff --git a/types/core/custom/index.d.ts b/types/core/custom/index.d.ts
index 45a40b8..5b526c1 100644
--- a/types/core/custom/index.d.ts
+++ b/types/core/custom/index.d.ts
@@ -1,3 +1,4 @@
+import { FastDictFactory } from '@/common/utils';
 type CustomHandleType = 'add' | 'replace';
 type CustomDictType = 'pinyin' | 'multiple' | 'polyphonic';
 interface CustomPinyinOptions {
@@ -16,9 +17,9 @@ interface CustomPinyinOptions {
  * @param {CustomPinyinOptions} options multiple/polyphonic 对于 customPinyin 补充词汇的处理
  */
 export declare function customPinyin(config?: {
-    [key: string]: string;
+    [word: string]: string;
 }, options?: CustomPinyinOptions): void;
-export declare const getCustomMultpileDict: () => string[];
-export declare const getCustomPolyphonicDict: () => string[];
+export declare const getCustomMultpileDict: () => FastDictFactory;
+export declare const getCustomPolyphonicDict: () => FastDictFactory;
 export declare function clearCustomDict(dict: CustomDictType | CustomDictType[]): void;
 export {};
diff --git a/types/core/pinyin/handle.d.ts b/types/core/pinyin/handle.d.ts
index f2406ce..449ffcb 100644
--- a/types/core/pinyin/handle.d.ts
+++ b/types/core/pinyin/handle.d.ts
@@ -3,10 +3,10 @@ import type { SurnameMode } from "../../common/type";
 import { TokenizationAlgorithm } from "../../common/segmentit";
 /**
  * @description: 获取单个字符的拼音
- * @param {string} word
+ * @param {string} char
  * @return {string}
  */
-type GetSingleWordPinyin = (word: string) => string;
+type GetSingleWordPinyin = (char: string) => string;
 export declare const getSingleWordPinyin: GetSingleWordPinyin;
 export declare const getPinyin: (word: string, list: SingleWordResult[], surname: SurnameMode, segmentit: TokenizationAlgorithm) => SingleWordResult[];
 /**
@@ -18,10 +18,10 @@ type GetPinyinWithoutTone = (pinyin: string) => string;
 declare const getPinyinWithoutTone: GetPinyinWithoutTone;
 /**
  * @description: 获取单字符的多音拼音
- * @param {string} word
+ * @param {string} char
  * @return {WordResult[]}
  */
-type GetAllPinyin = (word: string, surname?: SurnameMode) => string[];
+type GetAllPinyin = (char: string, surname?: SurnameMode) => string[];
 export declare const getAllPinyin: GetAllPinyin;
 /**
  * @description: 获取单字符的多音拼音
diff --git a/types/core/pinyin/middlewares.d.ts b/types/core/pinyin/middlewares.d.ts
index 9f1ebb9..07a7f40 100644
--- a/types/core/pinyin/middlewares.d.ts
+++ b/types/core/pinyin/middlewares.d.ts
@@ -20,5 +20,4 @@ export declare const middlewareType: (list: SingleWordResult[], options: Complet
     polyphonic: string[];
     inZhRange: boolean;
 }[];
-export declare const middlewareDoubleUnicode: (list: SingleWordResult[]) => SingleWordResult[];
 export declare const middlewareToneSandhi: (list: SingleWordResult[], toneSandhi: boolean) => SingleWordResult[];
diff --git a/types/data/dict1.d.ts b/types/data/dict1.d.ts
index 0a6fc9b..1859041 100644
--- a/types/data/dict1.d.ts
+++ b/types/data/dict1.d.ts
@@ -1,2 +1,3 @@
-declare const DICT1: string[];
+import { FastDictFactory } from "@/common/utils";
+declare const DICT1: FastDictFactory;
 export default DICT1;