dexonline.ro (Dicționar Explicativ
Online - 'Explanatory Dictionary Online') - The largest collection of
entries from various Romanian dictionaries. – Features 1,000,000 headword
entries, word games and daily and monthly word selections.
Dicționare ('Dictionaries') - An
English-Romanian and Romanian-English dictionary. – Very little additional
information is available about the website.
Glosbe - A many-to-many word and
translation look-up dictionary which allows users to translate words from
their native language to Romanian and vice-versa. – Contains 120,000
phrases and 52,000,000 examples.
Reverso Context - A
similar project to Glosbe; it's less open but the context-based
translation of phrases is pretty accurate.