S: (n) line (a formation of people or things one beside another) "the line of soldiers advanced with their bayonets fixed"; "they were arrayed in line of battle"; "the cast stood in line for the curtain call"
S: (n) formation (an arrangement of people or things acting as a unit) "a defensive formation"; "a formation of planes"
S: (n) arrangement (an orderly grouping (of things or persons) considered as a unit; the result of arranging) "a flower arrangement"