Omnilexica

Omnilexica is a free online dictionary.  Omnilexica defines itself as "search in all dictionaries at once".

I think this description makes justice to Omnilexica  as it provides definitions for all English words and expressions in both mainstream and specialised dictionaries together with examples, pronunciation, videos, quotes.

 

 Drop by  Omnilexica and type in any word or expression in the search box at the top and you will discover a dictionary with a difference.

H/T to Teaching English.