Brazilian Portuguese thesaurus for Emacs, queries dicio.com.br using dicio-api.
Heavily based on github.com/AnselmC/le-thesaurus.el (thanks! 😄).
tesouro.el is in MELPA! Just install it with use-package, for example.
With the point over a word, invoke M-x tesouro-get-synoynms. Pick a synonym from the completion buffer and RET. tesouro.el does its best to detect if a word is capitalized or uppercase and match its output, but other word cases are not supported yet.
Responses from dicio.com.br are cached; use tesouro-clear-cache if you wish to clear the cache.