definition of
bottom

[1] #1 bottom n. [underside, undersurface] the lower side of anything. wn

[2] #2 bottom n. the lowest part of anything; "they started at the bottom of the hill". wn

[3] #3 bottom n. [buttocks, nates, arse, butt, backside, bum, buns, can, fundament, hindquarters, hind end, keister, posterior, prat, rear, rear end, rump, stern, seat, tail, tail end, tooshie, tush, behind, derriere, fanny, ass] the fleshy part of the human body that you sit on; "he deserves a good kick in the butt"; "are you going to sit on your fanny and do nothing?". wn

[4] #4 bottom n. [bottom of the inning] the second half of an inning; while the home team is at bat. wn

[5] #5 bottom n. [bed] a depression forming the ground under a body of water; "he searched for treasure on the ocean bed". wn