formations

Someone tell me what formation it means

football related,
he formation of a team refers to the position players take in relation to each other on a pitch. As association football is a fluid and fast-moving game, a player's position (with the exception of the goalkeeper) in a formation does not define their role as tightly as that of rugby player, nor are there breaks in play where the players must line up in formation (as in gridiron football). A player's position in a formation typically defines whether a player has a mostly defensive or attacking role, and whether they tend to play centrally or towards one side of the pitch.

So ya can also just build a wall of people.