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coin

1 American  
[koin] / kɔɪn /

noun

  • coins
    plural
  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.

  5. Archaic. a corner cupboard of the 18th century.


adjective

  1. operated by, or containing machines operated by, inserting a coin or coins into a slot.

    a coin laundry.

verb (used with object)

  • coins,
    present (3rd person singular)
  • coined,
    past participle,  past
  • coining
    present participle
  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.

verb (used without object)

  • coins,
    present (3rd person singular)
  • coined,
    past participle,  past
  • coining
    present participle
  1. British Informal. to counterfeit, especially to make counterfeit money.

idioms

  1. the other side of the coin, the other side, aspect, or point of view; alternative consideration.

  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. coin money, to make or gain money rapidly.

    Those who own stock in that restaurant chain are coining money.

COIN 2 American  
[koin] / kɔɪn /
coin British  
/ kɔɪn /

noun

  1. a metal disc or piece used as money

  2. metal currency, as opposed to securities, paper currency, etc

  3. architect a variant spelling of quoin

  4. to treat a person in the way that he has treated others

  5. the opposite view of a matter

"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

verb

  1. (tr) to make or stamp (coins)

  2. (tr) to make into a coin

  3. (tr) to fabricate or invent (words, etc)

  4. informal (tr) to make (money) rapidly (esp in the phrase coin it in )

  5. said ironically after one uses a cliché

"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
coin More Idioms  

    More idioms and phrases containing coin


Other Word Forms

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Present

Past

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Etymology

Origin of coin1

First recorded in 1300–50; Middle English coyn(e), coygne, from Anglo-French; Middle French coin, cuigne “wedge, corner, die,” from Latin cuneus “wedge”

Origin of COIN2

co(unter) in(surgency)

Explanation

If you coin a phrase, that means you come up with a new way to say something, like the person who coined "webizens" to describe people who constantly use the Internet. The verb coin literally refers to making coins, the change you probably have in your pocket. The word can be used in a broader sense — creating something new, usually something related to language. For example, you could coin a phrase or a new word for “joke.” The language authorities would be proud — unlike federal authorities if you tried to coin money. That kind of coining is a criminal offense.

Keep Reading on Vocabulary.com

Vocabulary lists containing coin

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

At the heart of Britain's coin factory, old Bank of England telephones are stripped down and dipped into giant vats to recover a hidden treasure: the gold in their circuits.

From Barron's Aug. 4, 2026

The analysts said that of the potential $12 a share from the contingent value rights, they view $5 as likely and $5 as unlikely, with the remaining $2 a coin flip.

From The Wall Street Journal Aug. 3, 2026

Some 28% go for the coin flip, compared with just 11% among the over-65s - their grandparents' generation.

From BBC Jul. 26, 2026

This number includes coins depicting heads of state who were in office when the coin was originally issued, whether or not they were still there in 2024.

From Salon Jul. 22, 2026

Anya squinted at the coin, strung on the end of a cord.

From Anya and the Dragon by Sofiya Pasternack

And in March 2017, Futurism reported that “An AI Completed 360,000 Hours of Finance Work in Just Seconds,” in a story of JPMorgan’s “machine learning” successes due to its new program called COIN, Contract Intelligence.

From Washington Times Mar. 8, 2018

The strategy, known by its acronym COIN, would require as many as 40,000 additional American men and women in uniform in Afghanistan, his advisers told him.

From New York Times Jan. 1, 2017

Before Colorado’s creation of COIN, communication between entrepreneurs, start up businesses, academia, and big business was turbulent and rarely effective.

From Forbes Nov. 6, 2014

According to Demaree, Tunnell barred his soldiers from using the term COIN, shorthand for "counterinsurgency."

From Washington Post Oct. 14, 2010

Gold dust there was in plenty, but no COIN.

From Sally Dows by Harte, Bret

They drew Silicon Valley investors, and the pair added Pokémon and sports cards, coins and eventually fashion, electronics and a wide range of other items, including knives, horse tack and live plants.

From The Wall Street Journal Aug. 5, 2026

Thompson didn’t raise the issue to the company because he said it was months before he understood from the grading services the true value of the coins.

From The Wall Street Journal Aug. 5, 2026

Scavengers would dig up artifacts like gold coins and porcelain doll heads, and Bayouth admired their aged, archival qualities, a theme that takes shape in her ceramics.

From Los Angeles Times Jul. 29, 2026

It is possible to trade the cards and build up in-game "coins" without using real money, but it is generally seen as a slower and less effective way to play.

From BBC Jul. 24, 2026

I take a few coins from my pocket but can’t tell one from the other.

From "The Bletchley Riddle" by Ruta Sepetys and Steve Sheinkin

The doctrine at the center of all this has a name: the Purcell principle, a term coined by Slate contributor Richard L. Hasen after a 2006 case, Purcell v.

From Slate Jul. 30, 2026

A year before Sire Records founder Seymour Stein coined the term “new wave” to describe the pop-flavored punk bands emerging in 1977, Jonathan Richman and the Modern Lovers had already launched the movement.

From The Wall Street Journal Jul. 22, 2026

The stagnant condition of the labor market is so unusual that economists have even coined a phrase to describe it: “low-hire and low-fire,” a new phenomenon that emerged less than two years ago.

From MarketWatch Jul. 11, 2026

BofA Securities analyst Michael Hartnett first coined the term in 2023, after the megacap tech stocks dragged investors out of the 2022 bear market.

From Barron's Jun. 26, 2026

There he coined the term physical education and took his appalled young charges on brisk rambles of thirty-five or forty miles over the neighboring mountains.

From "A Walk in the Woods" by Bill Bryson

Ahmed: Well, I was really proud to be part of the conversation, when we were kind of collectively coining that term, right, going from diversity to representation.

From Los Angeles Times Jun. 11, 2026

He adopted it last year after his daughter prevailed upon him through the writings of Holocaust survivor and lawyer Raphael Lemkin, credited with coining the term.

From The Wall Street Journal Jun. 8, 2026

“Our fans’ love for McDonald’s beverages runs deep, from rallying for the return of Hi-C Orange Lavaburst to coining the iconic ‘Spicy Sprite,’” McDonald’s said in a statement to Barron’s.

From Barron's Apr. 13, 2026

In the early ‘90s, authors William Strauss and Neil Howe, who were credited with coining the term “millennials,” took generational labels deep into the realm of pseudoscience.

From Salon Dec. 19, 2025

The attacks were growing worse, and my refusal to react incited Nealson into coining more absurd phrases.

From "Black Boy" by Richard Wright

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