1. (verb)border, adjoin, edge, abut, march, butt, butt against, butt on lie adjacent to another or share a boundary "Canada adjoins the U.S."; "England marches with Scotland"
2. (verb)butt, bunt to strike, thrust or shove against
"He butted his sister out of the way"; "The goat butted the hiker with his horns"
3. (verb)butt place end to end without overlapping "The frames must be butted at the joints"