n. 25B6; noun
the butt of a gun : STOCK, end, handle, hilt, haft, helve.
a cigarette butt : STUB, end, tail end, stump, remnant; informal fag end, dog end.
(N. Amer. informal) sitting on his butt. : See bottom noun sense 6.
25B6; verb the shop butts up against the house : ADJOIN, abut, be next to, be adjacent to, border (on), neighbour, be connected to; join, touch.