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affair

American  
[uh-fair] / əˈfɛər /

noun

  1. anything done or to be done; anything requiring action or effort; business; concern.

    an affair of great importance.

  2. affairs, matters of commercial or public interest or concern; the transactions of public or private business or finance.

    affairs of state; Before taking such a long trip you should put all your affairs in order.

  3. an event or a performance; a particular action, operation, or proceeding.

    When did this affair happen?

  4. thing; matter (applied to anything made or existing, usually with a descriptive or qualifying term).

    Our new computer is an amazing affair.

  5. a private or personal concern; a special function, business, or duty.

    That's none of your affair.

  6. an intense amorous relationship, usually of short duration.

  7. an event or happening that occasions or arouses notoriety, dispute, and often public scandal; incident.

    the Congressional bribery affair.

  8. a party, social gathering, or other organized festive occasion.

    The awards ceremony is the biggest affair on the school calendar.


affair British  
/ əˈfɛə /

noun

  1. a thing to be done or attended to; matter; business

    this affair must be cleared up

  2. an event or happening

    a strange affair

  3. (qualified by an adjective or descriptive phrase) something previously specified, esp a man-made object; thing

    our house is a tumbledown affair

  4. a sexual relationship between two people who are not married to each other

"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

Etymology

Origin of affair

1250–1300; earlier affaire < French, Old French afaire for a faire to do, equivalent to a (< Latin ad to) + faire ≪ Latin facere; replacing Middle English afere < Old French

Explanation

If your grandfather was so startled by people shouting "Surprise!" at his birthday party that he had a mild heart attack, you'd probably want to just forget the whole affair. An affair is a specific event. You can use affair as a kind of shorthand, to mean "that big mess," or "that complicated story I already told you about." Your affair can also mean your responsibility or job, like if your grandmother said, "I don't care about balloons for the party — that's your affair." Another way affair is frequently used is to mean a love affair, particularly if the relationship is brief and intense. This meaning comes from the French phrase affaire de coeur, "affair of the heart."

Keep Reading on Vocabulary.com

Vocabulary lists containing affair

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.

“They are the best at getting people excited,” says Dianna Cohen, founder of the hair-care brand Crown Affair.

From The Wall Street Journal • Dec. 8, 2025

Forever Young was the third foreign horse to win the Classic, joining Argentine-bred Invasor in 2006 and Irish-bred Black Tie Affair in 1991.

From Los Angeles Times • Nov. 1, 2025

From The Thomas Crown Affair to Inside Man, audiences adore the art of the steal.

From Salon • Oct. 19, 2025

"It's ridiculous, absolutely ridiculous. I don't even really have words for it," she told A Current Affair.

From BBC • Sep. 24, 2025

Jefferson and Madison even managed to persuade themselves that Adams had concocted the entire XYZ Affair to mobilize popular support for a declaration of war.

From "Founding Brothers: The Revolutionary Generation" by Joseph J. Ellis