english-lexicon

A comprehensive collection of English dictionary words aggregated from multiple public domain sources.

Features

• 525,000+ unique English words - One of the largest collections available
• Multiple sources - Aggregated from 16+ trusted word lists
• Simple API - Just two methods: getWords() and hasWord()
• Efficient lookups - Uses Set for O(1) word existence checks
• Zero runtime dependencies - Lightweight and fast

Installation

npm install english-lexicon

Usage

import { EnglishLexicon } from 'english-lexicon';

// Get all words as an array
const words = EnglishLexicon.getWords();
console.log(`Total words: ${words.length}`);

// Check if a word exists
console.log(EnglishLexicon.hasWord('hello'));     // true
console.log(EnglishLexicon.hasWord('xyzzy123'));  // false

API

EnglishLexicon.getWords(): string[]

Returns an array of all words in the lexicon.

EnglishLexicon.hasWord(word: string): boolean

Checks if a word exists in the lexicon. Returns true if found, false otherwise.

Word Sources

The word list is aggregated from these public domain sources:

• dwyl/english-words - ~466k words
• lorenbrichter/Words - Letterpress game words
• sindresorhus/word-list - Curated word list
• first20hours/google-10000-english - Frequency-based lists
• MIT wordlists - 10k and 100k lists
• dolph/dictionary - Unix words
• en-wl/wordlist - SCOWL-based lists
• Wikipedia word frequency
• Moby Project

Use Cases

• Spell checking - Validate if user input contains real words
• Word games - Wordle, Scrabble, crossword puzzle solvers
• Text analysis - Filter valid English words from text
• Auto-completion - Suggest words based on prefix
• Educational apps - Vocabulary building, word learning

License

MIT