I use Merriam-Webster and Wiktionary. I'm looking for a way to search within definitions and do other searches on either of those sites or a site where these kinds of searches can be performed.

  • search for all words that contain a word or phrase in their definition
  • search for all words that match a pattern: eg. un*ly or *just*
  • not essential: search on parts of speech or etymology
  • Boolean combinations

I once had some desktop software that would do this. I know the patterns can be searched in scrabble dictionaries, but they don't often have full-text definitions.

  • Really? Six and a half years after the question was asked and answered it's been put on hold? Jun 14, 2017 at 15:41

2 Answers 2


Yes, it is called OneLook.


For searching by pattern, I use the Regex Dictionary, it's very useful. You can't search in their definition though, but it does your second point really well.

  • It also does my third (and fourth) point(s). Aug 8, 2010 at 14:11

Not the answer you're looking for? Browse other questions tagged or ask your own question.