from The American Heritage® Dictionary of the English Language, 4th Edition
- transitive v. To make black.
- transitive v. To sully or defame: a scandal that blackened the mayor's name.
- transitive v. To coat (fish or meat, for example) with pepper and other spices and then quickly sear in a very hot skillet, thereby producing meat that is black on the outside but tender on the inside.
- intransitive v. To become dark or black: The day blackened into night.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- v. To make black.
- v. To make dirty.
- v. To defame or sully.
- v. To cook (meat or fish) by coating with pepper, etc., and quickly searing in a hot pan.
- v. To become black.
from the GNU version of the Collaborative International Dictionary of English
- transitive v. To make or render black.
- transitive v. To make dark; to darken; to cloud.
- transitive v. To defame; to sully, as reputation; to make infamous.
- intransitive v. To grow black or dark.
from The Century Dictionary and Cyclopedia
- To grow black or dark.
- To make black; darken.
- Figuratively, to sully; make infamous; defame; cause to appear immoral or vile: as, vice blackens the character.
- In founding, to coat (the face of a mold) with graphite, or any mixture used for the purpose, in order to create a surface which will gasify under the heat of the molten metal.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- v. make or become black
- v. burn slightly and superficially so as to affect color
black + -en (Wiktionary)