party - definition and synonyms

noun [countable] 

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  1. 1
    a social event at which people meet to celebrate something or to have fun by eating and drinking, dancing, playing games etc

    Are you going to Sally’s birthday party?

    There’s going to be a party to celebrate the completion of the project.

    give/have/throw/host a party (for someone/something):

    We’re having a big party for our twenty-fifth wedding anniversary.

    a farewell party (=when someone leaves a place):

    It’s Jane’s farewell party on Friday night.

    a surprise party:

    It was his birthday and I’d planned a surprise party for him.

  2. 2
    an organized group of people who have similar ideas about the way in which a country should be governed, and who work together to try to persuade people to vote for them in elections: can be followed by a singular or plural verb
    an opposition/a ruling party:

    The opposition parties had benefited from the problems of the ruling party.

    1. a.
      [only before noun] belonging to or connected with a political party

      the former party chairman

      the party faithful (=the members who always support a party):

      measures that have angered the party faithful

  3. 3
    a group of people who are going somewhere together, or who are all involved in the same activity: can be followed by a singular or plural verb

    a rescue party

    party of:

    a party of tourists

  4. 4
    formal a person or group involved in something such as an agreement or disagreement, especially a contract or legal case, with another person or group
    party to:

    the parties to the 1930 agreement

    an interested party:

    The planning team will announce details next week at a meeting for interested parties.