Question

affair
af·fair
 /əˈfeɚ/  noun  ,  pl   -fairs
  1 affairs [  plural  ] : work or activities done for a purpose : commercial, professional, public, or personal business
   The group conducts its affairs [=business] in private.
   We were told to arrange/settle our affairs. = We were told to put our affairs in order.
   handling/managing someone else's affairs
   They seem to be quite pleased with the current/present state of affairs. [=situation]
   She's the company's director of public affairs. [=the person who manages a company's relationship with the public]
   She's an expert in foreign affairs. [=events and activities that involve foreign countries]
   world/international affairs [=events and activities that involve different nations]
   After the war, the government focused on its own domestic affairs.
   They accused the U.S. of interfering in the internal affairs of other nations.
  2 [  count  ] : a matter that concerns or involves someone
   This has nothing to do with you. It's not your affair. [=business, concern] = It's none of your affair. [=business]
   How I choose to live is my affair, not yours.
  3 [  count  ] : a secret sexual relationship between two people : love affair
   adulterous/extramarital affairs between married men and single women
  — often used in the phrase have an affair
   She divorced her husband after she discovered that he was having an affair.
  — often + with
   She had an affair with a coworker.
  4 [  count  ]
  4 a : a social event or activity
   He wants to make their wedding day an affair to remember. [=a special event]
   a simple/elaborate affair
   We were invited to a black-tie affair [=a party in which men wear tuxedos and women wear fancy dresses] at the governor's mansion.
  4 b : an event or series of events that usually involves well-known people
   the famous hostage affair of the late 1970s
   The public has shown little interest in the whole affair.
  — often used with proper names
   the Iran-Contra affair [=scandal]
  5 [  count  ] informal : something made or produced : an object or thing
   The only bridge across the river was a flimsy affair of ropes and rotten wood.