The website Dicionário Criativo (www.dicionariocriativo.com.br) was conceived to offer linguistic tools to help users in creative writing (such as poems, lyrics, articles, etc.). The website embraces several linguistic knowledge repositories which were built upon linguistic-computational models. These repositories are composed by lexicons, thesaurus, phrases, idioms, proverbs, quotes and others. In special, the thesaurus uses an onomasiological structure that is more suitable in the process of creative writing. Today, the Dicionário Criativo is already used by over 300,000 users per month.