中文词语解谜器

中文学习价值：汉字游戏与词汇积累

新加坡与东南亚的中文学习背景

新加坡是东南亚地区华语教育最为系统化的国家，全国中小学推行双语教育政策，超过74%的华族学生将华语作为母语科目学习。马来西亚有超过1,200所华文学校，印度尼西亚、泰国、菲律宾和越南也有大量海外华人社区在维护华语传承。然而，对于生活在英语主导环境中的华语学习者而言，词汇量的保持和扩展是长期挑战。

研究表明，新加坡学生在汉字识别和词汇记忆方面面临的核心困难，是书写形式与口语之间的断层。一个日常口语中频繁使用的词，可能因为书写机会不足而逐渐遗忘其汉字写法。通过拼音查词功能，学习者可以在知道发音但忘记书写的情况下，快速检索到正确的汉字组合，重新建立音形连接。

成语文化：中华文明的语言结晶

成语（chéngyǔ）是中文词汇体系中极具特色的一类固定短语，通常由四个汉字组成，凝练了历史典故、寓言故事或哲学思想。《现代汉语词典》收录成语约5,000条，实际使用中的成语超过20,000条，其中3,000余条来源于先秦文献。成语贯穿于新闻报道、文学作品、商业演讲乃至日常对话之中，是衡量中文表达水平的重要指标。

对于东南亚的华语学习者而言，掌握常用成语不仅能提升书面表达的文雅程度，在商务场合引用恰当成语更能体现文化素养。本工具的"4字（成语）"过滤模式，专门用于从输入的汉字中搜索所有可能的四字成语，是备考华语考试（如PSLE、O Level Chinese）和职场中文提升的实用辅助工具。

技术说明：词典数据与算法

本工具使用 CC-CEDICT（Creative Commons 中英双语词典）作为基础词库，收录超过 105,000 条条目，涵盖2至4字的常用词、成语、专业术语和复合词。CC-CEDICT 是全球规模最大的开源中文词典项目，由数百位志愿者协作维护，数据以 CC Attribution-ShareAlike 协议开放使用。

搜索算法采用与英文版相同的签名哈希映射技术：将每个词条的汉字按 Unicode 代码点排序生成"签名"，建立签名到词条的映射表。搜索时，对输入汉字的所有子集枚举签名，查询时间复杂度为 O(2ⁿ)，对于典型的4字输入（16次查找），搜索耗时不超过 5毫秒。拼音模式则通过对输入音节排序后直接哈希查找，速度更快。

For English readers — what this tool does

The Chinese word unscrambler is the Mandarin sibling of our English word unscrambler. You hand it a small bag of Chinese characters and it returns every legitimate Chinese word or four-character idiom (chéngyǔ) that can be assembled from those characters. The use cases are the same as for English: vocabulary practice, crossword-style puzzles, and the simple "I know the characters but I am drawing a blank on which combination is a real word" moment that anyone learning a non-native language hits regularly. For ASEAN-based heritage Chinese speakers (Singapore, Malaysia, Indonesia) who can speak the language fluently but read and write less often, the tool functions as a reverse-dictionary aid — type in the Pinyin you remember and recover the characters you forgot.

The dictionary underneath is CC-CEDICT, the largest open-source Chinese-English dictionary on the internet, with over 105,000 entries spanning everyday vocabulary, business terminology, scientific terms, and four-character idioms drawn from classical literature. We chose CC-CEDICT specifically because it is permissively licensed (CC Attribution-ShareAlike) and community-maintained, with entries cross-checked by hundreds of contributors over fifteen years. The result is far more accurate than a hand-curated word list of comparable size.

Three modes the tool supports. Character mode lets you paste in any sequence of simplified or traditional Chinese characters; the tool returns every dictionary word that can be built from any subset of those characters. Pinyin mode accepts romanised Mandarin (with or without tone marks) and finds matching headwords — useful for the "I remember the sound, not the shape" recovery case. Idiom-only filter restricts results to four-character chengyu, which is the typical exam-prep mode for the Singapore Primary School Leaving Examination Chinese paper or the GCE O-Level Higher Chinese curriculum.

Three things the tool does not do, on purpose. It does not translate sentences into Chinese or vice versa — use a real translation service for that. It does not teach stroke order or radical decomposition — those are specialist apps. And it does not pronounce characters audibly — pair it with a Pinyin-with-audio service if you need to hear them. The tool is a focused vocabulary-recovery utility; keeping its scope narrow is what keeps it useful.

A note on simplified versus traditional. The tool accepts both. CC-CEDICT entries carry both forms, and we normalise input before looking up — so the same characters typed in either script return the same set of results. Hong Kong, Macau, and Taiwan-based users typing traditional characters get traditional output; mainland and Singapore users typing simplified characters get simplified output; mixed input is handled gracefully by treating each character independently.

Why a four-character idiom filter is worth its own button. Chengyu density in Mandarin business and academic writing is high enough that knowing a few hundred of the most-common ones is the difference between sounding fluent and sounding tentative. The PSLE Chinese paper and the Higher Chinese O-Level both test chengyu directly; the idiom filter mode lets students paste in characters from a study list and see which four-character idioms can be assembled — a fast way to drill the recognition step without flipping through a textbook.