#line.formation  a formation of people or things one behind another; "the line stretched clear around the corner"; "you must wait in a long line at the checkout counter"
  supertype:  formation_acting_as_a_unit__formation  an arrangement of people or things acting as a unit; "a defensive formation"; "a formation of planes"
  subtype:  diagonal.line  an oblique line of squares of the same color on a checkerboard; "the bishop moves on the diagonals"
     subtype:  main_diagonal__principal_diagonal__principaldiagonal  the diagonal of a square matrix running from the upper left entry to the lower right entry
     subtype:  secondary_diagonal__secondarydiagonal  the diagonal of a square matrix running from the lower left entry to the upper right entry
  subtype:  single_file__file__Indian_file  a line of persons or things ranged one behind the other
     subtype:  snake_dance.single_file__snakedance  a group advancing in a single-file serpentine path
     subtype:  column  a line of (usually military) units following one after another
  subtype:  line_of_march  the arrangement of people in a line for marching
  subtype:  line_of_succession  the order in which individuals are expected to succeed one another in some official position
  subtype:  picket_line  a line of people acting as pickets
  subtype:  conga_line__congaline  a line of people in single file performing the conga dance
  subtype:  trap_line  a line or series of traps
  subtype:  waiting_line__waitingline__queue  a line of people or vehicles waiting for something
     subtype:  breadline__bread_line__breadline  a queue of people waiting for free food
     subtype:  checkout_line  a queue of people waiting to pay for purchases
     subtype:  chow_line  a queue of people waiting for food to be served (especially at a military camp)
     subtype:  gas_line.waiting_line__gasline  a queue of vehicles waiting to purchase gasoline
     subtype:  reception_line__receptionline  a line of people (hosts and guests of honor) who welcome the guests at a reception party
     subtype:  ticket_line  a queue of people waiting to buy tickets
     subtype:  unemployment_line  a queue of people waiting for employment

No statement uses or specializes line.formation; click here to add one.