Troop

What is Troop ?

Troop is (noun) a large group of people She took a troop of schoolchildren to visit the museum. troops (NOTE: Do not confuse with troupe.) (verb) to go all together in a group After the play the whole cast trooped off to the local restaurant. All the students trooped into the hall. (adj) referring to soldiers

 

source: Easier English, Student Dictionary Upper Intermediate Level