noun
plural -tains
[count] a person who is in charge of a ship or an airplane
an officer of high rank in some branches of the military
chiefly US :an officer of high rank in a police or fire department
an athlete who is chosen to be the leader of a team
verb
-tains; -tained; -taining
[+ obj] :to be the captain of (something): such as
to be in charge of (a ship or airplane)
to lead (a team)
US