English Reference
noun

affair

n.
US /əˈfɛɹ/ UK /ɐfˈeə/ af·fair UK spelling affair's, affair's

  1. 01 B2 Upper Intermediate

    matters or events that are connected with a person, a group, or a country.

    matters of public or private business; often used in the plural to describe professional or political concerns.

    Simple

    The minister refused to comment on the internal affairs of the neighboring country.

    In context

    The board of directors is responsible for managing the financial affairs of the corporation and ensuring legal compliance.

    Usage

    Often used in the plural form 'affairs' when referring to business or politics.

  2. 02 B2 Upper Intermediate

    a secret sexual relationship between two people, especially when at least one of them is married to someone else.

    a romantic or sexual relationship between two people who are not married to each other, typically involving infidelity.

    Simple

    He found out that his wife was having an affair with a colleague from work.

    In context

    The tabloid press thrived on rumors of a clandestine affair between the high-profile politician and the famous actress.

  3. 03 B2 Upper Intermediate

    an event, situation, or object that you are describing in a particular way.

    an event, proceeding, or physical object that is characterized by a specific quality or adjective.

    Simple

    The whole dinner party was a very formal affair with many strict rules.

    In context

    The investigation into the missing funds became a long and complicated affair that lasted for several years.

  4. 04 C2 Proficiency FormalTechnical Military

    a small fight between soldiers that is not big enough to be called a full battle.

    a military engagement or skirmish of limited scale, typically involving smaller units rather than entire armies.

    Simple

    The border affair resulted in a few injuries but did not lead to a full-scale war.

    In context

    Historians describe the encounter as a minor affair, though it significantly impacted the morale of the local garrison.

Usage affairs director · affairs spokesperson

Most of the ads paid for by AIPAC did not have anything to do with U.S.-Israel affairs or El-Sayed’s position on ending aid to Israel.

The Conversation· 12 Aug 2026

She sees her four years on the island as “a grand love affair that couldn’t last for ever”.

The Guardian· 18 Jul 2026

From Middle English afere, affere, from Old French afaire, from a- + faire (“to do”), from Latin ad- + facere (“to do”). See fact, and compare ado.

Etymology adapted from Wiktionary, available under CC BY-SA 4.0.

This entry
Origin Latin ad-
Level B2 · Upper Intermediate
Frequency Common
Updated