n.
- Extortion of money or something else of value from a person by the threat of exposing a criminal act or discreditable information.
- Something of value extorted in this manner.
- Tribute formerly paid to freebooters along the Scottish border for protection from pillage.
blackmailer black'mail'er n.
The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved.