blackmail

noun

black·​mail ˈblak-ˌmāl 

1

: a tribute anciently exacted on the Scottish border by plundering chiefs in exchange for immunity from pillage

2

a

: extortion or coercion by threats especially of public exposure or criminal prosecution

b

: the payment that is extorted

blackmail transitive verb

blackmailer noun

Examples of blackmail in a Sentence

She was a victim of blackmail.

The servant extorted blackmail from her employer.

Recent Examples on the Web

Once an athlete shares a nugget or two on a teammate’s injury or a coach’s scheme, the blackmail escalates. —Eben Novy-Williams, Sportico.com, 24 Oct. 2025

Cybernews found that users sent an average of 107 messages to their AI partners, creating a digital footprint that could be exploited for identity theft, harassment, or blackmail. —Kurt Knutsson, FOXNews.com, 20 Oct. 2025

Both men met their victims online and coerced them to produce the material using threats and blackmail, according to the news release. —Lillie Davidson, Fort Worth Star-Telegram, 15 Oct. 2025

The Gimballs are left to wonder whether exposing Whelan for blackmail is a good option, given that his information about Dennis’ true nationality would kill his populist mayoral campaign. —Scott Tobias, Vulture, 15 Oct. 2025

Word History

Etymology

black entry 1 + mail entry 4

First Known Use

1552, in the meaning defined at sense 1

Phrases Containing blackmail

• emotional blackmail

Rhymes for blackmail

• airmail
• assail
• avail
• bewail
• cattail
• cocktail
• curtail
• derail
• detail
• dovetail
• email
• entail

Kids Definition

blackmail

noun

black·​mail ˈblak-ˌmāl 

1

: the act of forcing a person to do or pay something especially by a threat to reveal a secret

2

: something (as money) obtained through blackmail

blackmail verb

blackmailer noun

Etymology

from black (the color) and mail "rent, payment," from Old English māl "agreement," of Norse origin

Word Origin

The word blackmail has no connection at all with the postal system. In the 16th and part of the 17th centuries, the area along the border between England and Scotland was not usually protected by the officials on either side. Landholders were beset not only by outlaws but also by their own chieftains, who told them that in return for payment they would not be raided. In Scotland mail means "rent" or "payment." This word comes ultimately from an Old Norse word māl meaning "agreement" or "speech." The mail delivered by a letter carrier originally meant "sack, bag," and referred to the sack in which letters were carried; it is hence completely distinct in origin from the mail of blackmail.

Legal Definition

blackmail

noun

black·​mail ˈblak-ˌmāl 

: extortion or coercion by often written threats especially of public exposure, physical harm, or criminal prosecution

blackmail transitive verb

blackmailer

-ˌmā-lər

noun

Etymology

originally, payment extorted from farmers in Scotland and northern England, from black + dialectal mail payment, rent