partner

Someone you work, play, or share a romantic relationship with.

• My partner lives with me.
• Choose a partner for the dance.
• Her business partner handles the accounts.

How to use it: partner in something (He is my partner in this business.)

Similar words: companion, associate

Common phrases: business partner, dance partner, romantic partner, partner in something

To join someone in an activity or work with them as a team.

• She will partner me in the dance.
• The company partnered with a university.
• They are partnering on a new research project.

How to use it: partner with someone (We partnered with a local charity.); partner someone (She partnered her brother in the tennis match.)

Similar words: team up with, join forces with

Common phrases: partner with someone, partner someone, partner on something