cocaptain
/koʊˈkæptɪn/
noun
- One of two or more people who share the role of captain, especially of a sports team, ship, or aircraft.
- The ship had a cocaptain who shared navigation duties.
- The team chose two cocaptains to lead them this season.
- As cocaptain, she helped make decisions alongside her partner.
verb
- To serve as a joint captain of a team, ship, or other group.
- She was chosen to cocaptain the relay race team.
- They will cocaptain the basketball team this year.
- The two friends decided to cocaptain the debate club.