See more synonyms for coin on
  1. a piece of metal stamped and issued by the authority of a government for use as money.
  2. a number of such pieces.
  3. Informal. money; cash: He's got plenty of coin in the bank.
  4. Architecture. quoin(defs 1, 2).
  5. Archaic. a corner cupboard of the 18th century.
  1. operated by, or containing machines operated by, inserting a coin or coins into a slot: a coin laundry.
verb (used with object)
  1. to make (coinage) by stamping metal: The mint is coining pennies.
  2. to convert (metal) into coinage: The mint used to coin gold into dollars.
  3. to make; invent; fabricate: to coin an expression.
  4. Metalworking. to shape the surface of (metal) by squeezing between two dies.Compare emboss(def 3).
verb (used without object)
  1. British Informal. to counterfeit, especially to make counterfeit money.
  1. coin money, Informal. to make or gain money rapidly: Those who own stock in that restaurant chain are coining money.
  2. pay someone back in his/her own coin, to reciprocate or behave toward in a like way, especially inamicably; retaliate: If they persist in teasing you, pay them back in their own coin.
  3. the other side of the coin, the other side, aspect, or point of view; alternative consideration.

Origin of coin

1300–50; Middle English coyn(e), coygne < Anglo-French; Middle French coin, cuigne wedge, corner, die < Latin cuneus wedge
Related formscoin·a·ble, adjectivecoin·er, nounmis·coin, verbre·coin, verb (used with object)un·coined, adjectivewell-coined, adjective


noun, adjective
  1. counterinsurgency.

Origin of COIN

co(unter) in(surgency) Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for coin

Contemporary Examples of coin

Historical Examples of coin

  • They had best take care he did not pay them in their own coin.

    Clarissa, Volume 1 (of 9)

    Samuel Richardson

  • Last of all, there was the explosion, the carrying off of the coin in its canvas sacks to the horses.

  • "I had to coin a name for the place of meeting," he said to Mrs. Roberts afterwards.

  • He raised the covering hand, and peered at the coin in the gathering gloom.

  • What's any of them little haythen been coin' to scare ye, missy?

    Her Father's Daughter

    Gene Stratton-Porter

British Dictionary definitions for coin


  1. a metal disc or piece used as money
  2. metal currency, as opposed to securities, paper currency, etcRelated adjective: nummary
  3. architect a variant spelling of quoin
  4. pay a person back in his own coin to treat a person in the way that he has treated others
  5. the other side of the coin the opposite view of a matter
  1. (tr) to make or stamp (coins)
  2. (tr) to make into a coin
  3. (tr) to fabricate or invent (words, etc)
  4. (tr) informal to make (money) rapidly (esp in the phrase coin it in)
  5. to coin a phrase said ironically after one uses a cliché
Derived Formscoinable, adjectivecoiner, noun

Word Origin for coin

C14: from Old French: stamping die, from Latin cuneus wedge
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for coin

c.1300, "a wedge," from Old French coing (12c.) "a wedge; stamp; piece of money; corner, angle," from Latin cuneus "a wedge." The die for stamping metal was wedge-shaped, and the English word came to mean "thing stamped, a piece of money" by late 14c. (a sense that already had developed in French). Cf. quoin, which split off from this word 16c. Modern French coin is "corner, angle, nook." Coins were first struck in western Asia Minor in 7c. B.C.E.; Greek tradition and Herodotus credit the Lydians with being first to make and use coins of silver and gold.


"to coin money," mid-14c., from coin (n.). Related: Coined; coining. To coin a phrase is late 16c. A Middle English word for minter was coin-smiter.

Online Etymology Dictionary, © 2010 Douglas Harper

Idioms and Phrases with coin


In addition to the idiom beginning with coin

  • coin money

also see:

  • other side of the coin
  • pay back (in someone's own coin)
The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.