partner

• "Astaire partnered Rogers"

Synonyms

• spousea person's partner in marriage
• married persona person's partner in marriage
• mateengage in sexual intercourse; bring two objects, ideas, or people together; place an opponent's king under an attack from which it cannot escape and thus ending the game; the officer below the master on a commercial ship ; a fellow member of a team; the partner of an animal (especially a sexual partner); a person's partner in marriage ; an exact duplicate; one of a pair; South American holly; informal term for a friend of the same sex ; South American tea-like drink made from leaves of a South American holly called mate ; a chess move constituting an inescapable and indefensible attack on the opponent's king
• better halfa person's partner in marriage

• "the musician and the librettist were collaborators"
• "sexual partners"

Synonyms

• collaboratorsomeone who assists in a plot ; someone who collaborates with an enemy occupying force ; an associate in an activity or endeavor or sphere of common interest
• cooperatoran associate in an activity or endeavor or sphere of common interest
• pardneran associate in an activity or endeavor or sphere of common interest