QuickDic (from F-Droid, with offline dictionaries) works for me.
I use dict.cc. (Both the website and the app.) Works offline.
Re:Why I built a dictionary app
by keyboard_smash on Monday August 01, 2022 @06:16AM
(#32303985)
For European languages (at least French and Spanish), WordReference is pretty good. For everything else, Wiktionary’s a really good resource!
Related: what do people use for bilingual (translation) dictionaries (i.e. X-English or English-X)? Most of the apps I have found for the languages I use are full of ads and not very usable. (Translation apps like Google Translate are much better and more usable, but there are some use-cases where a dictionary really is better).