a military unit consisting of two or more squads or sections and a headquarters.

a small unit of a police force.

a company or group of persons

a platoon of visitors.

Football . a group of players specially trained in one aspect of the game, as offense or defense, and used as a unit

a halfback on the offensive platoon.

Sports .

to use (a player) at a position in a game alternately with another player or players.

to alternate (two different teams or units), as separate offensive and defensive squads.

Sports .

to alternate at a position with another player or players.

to use players alternately at the same position.

to alternate different teams.

noun

army , array , batch , battery , bunch , clump , cluster , company , detachment , lot , outfit , parcel , patrol , set , squad , squadron , team , troop , unit , crew , division , force , formation , group