n.

1. thick end of the handle;
   butt end
2. the part of a plant from which the roots spring or the part of a stalk or trunk nearest the roots
3. a victim of ridicule or pranks;
   goat, laughingstock, stooge
4. the fleshy part of the human body that you sit on;
   buttocks, nates, arse, backside, bum, buns, can, fundament, hindquarters, hind end, keister, posterior, prat, rear, rear end, rump, stern, seat, tail, tail end, tooshie, tush, bottom, behind, derriere, fanny, ass
   
   • he deserves a good kick in the butt
   • are you going to sit on your fanny and do nothing?
5. sports equipment consisting of an object set up for a marksman or archer to aim at;
   target
6. finely ground tobacco wrapped in paper; for smoking;
   cigarette, cigaret, coffin nail, fag
7. a joint made by fastening ends together without overlapping;
   butt joint
8. a large cask (especially one holding a volume equivalent to 2 hogsheads or 126 gallons)
9. the small unused part of something (especially the end of a cigarette that is left after smoking);
   stub

v.

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