​. a person that you are doing an activity with, such as dancing or playing a game · ​. the person that you are married to or having a sexual relationship with.

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 ...

​(of a company) to be involved in a business project with another company. partner with somebody/something Freshfoods usually partners with other companies ...

There are four meanings listed in OED's entry for the verb partner. See 'Meaning & use' for definitions, usage, and quotation evidence.

to be someone's partner in a dance, game, etc. Gerry offered to partner me at tennis. Take your English to the next level. The Oxford Learner's Thesaurus ...

[countable, uncountable] a relationship between two people, organizations, etc.; the state of having this relationship. Marriage should be an equal partnership.

a relationship between two people, organizations, etc.; the state of having this relationship. Marriage should be an equal partnership.

​a member of a couple in a sexual or romantic relationship that is regarded as permanent. Finding a potential life partner is never easy.

a person or organization you are closely involved with in some way. He gave up his job as a police officer after his partner was killed. Sleeping partner · PARTNER | definition in the... · Active partner · General partner

a legal relationship between two people, usually of the same sex, with the same legal status as marriage