Free, no signup required:

Add to Chrome

Get instant definitions for any word that hits you anywhere on the web!

Free, no signup required:

Add to Firefox

Get instant definitions for any word that hits you anywhere on the web!

Browse Definitions.net

Quiz

Are you a words master?

»
the quality of being impenetrable (by people or light or missiles etc.)
A mealie
B imperviousness
C nidus
D maculation