partner up
— phrasal verb with partner uk/ˈpɑːt.nər/us/ˈpɑːrt.nɚ/verb [ I or T ]
to marry or form a long and serious relationship with another person:
All his friends were partnering up and settling down.
to act as someone's partner in a sport, game, dance, or activity:
They partner up and throw weighted medicine balls at each other.
to join with another person or organization in a business activity:
Businesses partner up with local schools to offer work experience to students.