# EZGlot > EZGlot maps the words that languages share. Built from a graph of 350+ million translation relations across ~90 languages, it shows which foreign words you already know: cognates and borrowings with meaning similarity, lexical-similarity rankings between languages, frequency lists, vocabulary tests, word games, and bilingual learning books built entirely from shared vocabulary. Key facts: ~90 languages; data mined from Wiktionary, OmegaWiki, FreeDict, Apertium, Wikipedia and other open resources; custom graph analysis and a published lexical-similarity measure (cited in peer-reviewed research). Languages are identified by ISO-639-3 codes in URL parameters (l = language, l2 = second language, w = word, lang = interface language). Code gotchas: Serbian is `hbs` (not srp), Mandarin is `cmn` (not zho), Norwegian Bokmål is `nob`. All URLs are extensionless (.php variants redirect). ## Core - [Word lookup](https://www.ezglot.com/words?l=eng&w=test): translations grouped by language family, cognates with world-population reach, pronunciations, definitions, example sentences, etymology. Pattern: `/words?l={lang}&w={word}` (+`&l2={lang2}`). - [Common words between two languages](https://www.ezglot.com/common-words?l=eng&l2=spa): paired list of shared vocabulary with example sentences and community validation. Pattern: `/common-words?l={lang1}&l2={lang2}`. - [Most similar languages](https://www.ezglot.com/most-similar-languages): lexical-similarity rankings, the similarity formula (#formula) and research citations (#citations). Pattern: `/most-similar-languages?l={lang}` for per-language top-10. - [Word lists in context](https://www.ezglot.com/word-lists): daily bilingual story cards built from shared words, with practice mode. Pattern: `/word-lists?l={lang1}&l2={lang2}`. - [Dictionary](https://www.ezglot.com/dictionary?l=eng&l2=spa): browsable pair dictionaries with letter index. Pattern: `/dictionary?l={lang1}&l2={lang2}&w={letter}&page={n}`. - [Vocabulary test](https://www.ezglot.com/vocabulary-test?r=s&l=eng): estimate vocabulary size in 30+ languages (subtitle-corpus based). Pattern: `/vocabulary-test?l={lang}&r=s`. - [Word games & solvers](https://www.ezglot.com/solvers): anagrams, Wordle helper, unscrambler, rhymes, prefix/suffix/contains searches, multilingual. Pattern: `/solvers?mode={anagram|unscramble|wordle|start|end|contain|within|any|all|plus|rhyme}&l={lang}&w={letters}` (wordle: `&length=5`). - [Word etymologies](https://www.ezglot.com/etymologies): lists of words in language X of language-Y origin. Pattern: `/etymologies?l={lang}&l2={origin_lang}`. - [Most frequently used words](https://www.ezglot.com/most-frequently-used-words?l=eng): top-3000 frequency lists with pronunciations and translations; Wikipedia-corpus variants. Pattern: `/most-frequently-used-words?l={lang}&page={n}` (`&s=wp-freq|wp-lin|wp-log`). - [Unique words](https://www.ezglot.com/unique-words?l=eng): words that exist in only one language. Pattern: `/unique-words?l={lang}&page={n}`. - [Language statistics](https://www.ezglot.com/statistics): dictionary sizes, shared-word counts, where each language is understood. Pattern: `/statistics?l={lang}`. ## Books & Audio - [Books](https://www.ezglot.com/books): bilingual learning books written from shared vocabulary (e.g. Dvesta, Serbian↔Russian), with audio lessons; unit 1 free per direction. Patterns: `/books/{slug}?d={direction}`, `/lesson/{slug}/{direction}/u{NN}`. ## API & Data - [Word games API](https://rapidapi.com/lakinekaki7/api/words36/details): public API for word-game queries. - [About & contact](https://www.ezglot.com/about): methodology (#science), disclaimer, contributors, collaboration and API inquiries (#contact). ## Citations - Cite as: Lazar Kovacevic, Vladimir Bradic, Gerard de Melo, Sinisa Zdravkovic, Ezglot, https://www.ezglot.com/ 2021 - Research using this data: see https://www.ezglot.com/most-similar-languages#citations ## Optional - [FAQ](https://www.ezglot.com/faq) - [Settings](https://www.ezglot.com/settings): pick result languages (cookie-based personalization). - [Word of the day](https://www.ezglot.com/word-of-the-day)