#1 bottom n. [underside, undersurface] the lower side of anything. wn
#2 bottom n. the lowest part of anything; "they started at the bottom of the hill". wn
#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 bottom n. [bottom of the inning] the second half of an inning; while the home team is at bat. wn
#5 bottom n. [bed] a depression forming the ground under a body of water; "he searched for treasure on the ocean bed". wn
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