troop troop /ˈtruːp/

noun

1. () A group of soldiers  ( troop )
   a group of soldiers
     The troop of scouts set up camp in the woods.
   The troop of scouts set up camp in the woods.
   
   
2. () A cavalry unit corresponding to an infantry company  ( troop )
   a cavalry unit corresponding to an infantry company
   
3. An orderly crowd  ( troop , flock )
   an orderly crowd
    A troop of children
   a troop of children
   
   
4. A unit of Girl or Boy Scouts  ( scout group , scout troop , troop )
   a unit of Girl or Boy Scouts
   

verb

1. Move or march as if in a crowd  ( troop )
   move or march as if in a crowd
    They children trooped into the room
   They children trooped into the room
   
2. March in a procession  ( promenade , troop , parade )
   march in a procession
    The veterans paraded down the street
   the veterans paraded down the street