[ます, masu] (n) (1) measuring container; measure; (2) box (seating at a theatre, etc.); (3) square on a grid; cell of a grid; (4) (斗 only) square bearing block (at the top of a pillar); (P)#12446
[ますがた, masugata] (n) (1) square (shape); (2) (斗形 only) square bearing block (at the top of a pillar); (3) (in a castle) rectangular space between the inner and outer gates (where troops can gather)