Definition of partner noun from the Oxford Advanced American Dictionary

        

    partner

     noun
    noun
    NAmE//ˈpɑrtnər//
     
     
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  1. 1the person that you are married to or having a sexual relationship with Come to the New Year disco and bring your partner! a marriage partner Topic CollocationsMarriage and Divorceromance fall/be (madly/deeply/hopelessly)in love (with somebody) be/believe in/fall in love at first sight be/find true love/the love of your life suffer (from) (the pains/pangs of) unrequited love have/feel/show/express great/deep/genuine affection for somebody/something meet/marry your husband/wife/partner/fiancé/fiancée/boyfriend/girlfriend have/go on a (blind)date be going out with/dating a guy/girl/boy/man/woman move in with/live with your boyfriend/girlfriendweddings get/be engaged/married/divorced arrange/plan a wedding have a big wedding/a honeymoon/a happy marriage have/enter into an arranged marriage call off/cancel/postpone your wedding invite somebody to/go to/attend a wedding/a wedding ceremony/a wedding reception conduct/perform a wedding ceremony exchange rings/wedding vows/marriage vows congratulate/toast/raise a glass to the happy couple be/go on your honeymoon (with your wife/husband) celebrate your first (wedding) anniversaryseparation and divorce be unfaithful to/ (informal) cheat on your husband/wife/partner/fiancé/fiancée/boyfriend/girlfriend have an affair (with somebody) break off/end an engagement/a relationship break up with/ (informal) dump your boyfriend/girlfriend separate from/be separated from/leave/divorce your husband/wife annul/dissolve a marriage file for/ask for/go through/get a divorce get/gain/be awarded/have/lose custody of the children pay alimony/child support (to your ex-wife/husband) see also domestic partner
  2. 2one of the people who owns a business and shares the profits, etc. a partner in a law firm a junior/senior partner
  3. 3a person that you are doing an activity with, such as dancing or playing a game a dancing/tennis, etc. partner see also sparring partner
  4. 4a country or an organization that has an agreement with another country a trading partner see also silent partner
See the Oxford Advanced Learner's Dictionary entry: partner