- (transitive, causative) To cause to be or become black.
- (intransitive, stative) To become black.
- The sky blackened as the storm clouds rolled in.
- (transitive, causative) To make dirty.
- To defame or sully.
- Malice delights to blacken the characters of prominent men. — Napoleon Bonaparte (Can we date this quote?)
- (transitive) To cook (meat or fish) by coating with pepper, etc., and quickly searing in a hot pan.
- (make black): black, denigrate
- (make dirty): dirty, soil
- (defame): defame, denigrate, sully, taint, tarnish
cook by coating with pepper and quickly searing