Sketch Engine is a tool to explore how language works. Its algorithms analyze authentic texts of billions of words (text corpora) to identify instantly what is typical in language and what is rare, unusual or emerging usage. It is also designed for text analysis or text mining applications. Sketch Engine is used by linguists, lexicographers, translators, students and teachers. It is a first choice solution for publishers, universities, translation agencies and national language institutes throughout the world. Sketch Engine contains 500 ready-to-use corpora in 90+ languages, each having a size of up to 30 billion words to provide a truly representative sample of language. Some of its functions are: word sketch, sketch difference, thesaurus, concordance, parallel concordance, wordlist, n-grams, keywords & terms, bilingual term extractiontrends and OneClick Dictionary.