Wiktionary: Reta Vortaro
From open-dictionary.com - the free dictionary.
Reta Vortaro (online dictionary, short : ReVo) is a multilingual dictionary project started 1997.
Definitions of words are given in Esperanto and there are translations into many languages. There are automatic indexes in every supported language. Articles are written in XML format and are based on a specific DTD. ReVo is a contributive project where a moderator examines the contributions before publishing them. One can link from any Wikimedia project to ReVo using the [[ReVo:radik]] or [[ReVo:radik|radiko]] code where "radik" is the whitout desinance word radical at which one wants to link. It will result in: radiko.
One can also use the message {{msg:ReVo}}vort|vorto]] (= word) which will result in:
vorto