S: (n) drop, bead, pearl (a shape that is spherical and small) "he studied the shapes of low-viscosity drops"; "beads of sweat on his forehead"
S: (n) drop, drib, driblet (a small indefinite quantity (especially of a liquid)) "he had a drop too much to drink"; "a drop of each sample was analyzed"; "there is not a drop of pity in that man"; "years afterward, they would pay the blood-money, driblet by driblet"--Kipling
S: (n) drop, dip, fall, free fall (a sudden sharp decrease in some quantity) "a drop of 57 points on the Dow Jones index"; "there was a drop in pressure in the pulmonary artery"; "a dip in prices"; "when that became known the price of their stock went into free fall"
S: (n) cliff, drop, drop-off (a steep high face of rock) "he stood on a high cliff overlooking the town"; "a steep drop"
S: (n) drop (a predetermined hiding place for the deposit and distribution of illicit goods (such as drugs or stolen property))
S: (n) drop, fall (a free and rapid descent by the force of gravity) "it was a miracle that he survived the drop from that height"
S: (n) drop curtain, drop cloth, drop (a curtain that can be lowered and raised onto a stage from the flies; often used as background scenery)
S: (n) drop (a central depository where things can be left or picked up)
S: (n) drop (the act of dropping something) "they expected the drop would be successful"
S: (v) drop (let fall to the ground) "Don't drop the dishes"
S: (v) drop (to fall vertically) "the bombs are dropping on enemy targets"
S: (v) drop (go down in value) "Stock prices dropped"
S: (v) drop (change from one level to another) "She dropped into army jargon"
S: (v) drop (fall or sink into a state of exhaustion or death) "shop til you drop"
S: (v) devolve, deteriorate, drop, degenerate (grow worse) "Her condition deteriorated"; "Conditions in the slums degenerated"; "The discussion devolved into a shouting match"
S: (v) drop (give birth; used for animals) "The cow dropped her calf this morning"