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: (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) change state, turn (undergo a transformation or a change of position or action) "We turned from Socialism to Capitalism"; "The people turned against the President when he stole the election"
S: (v) change (undergo a change; become different in essence; losing one's or its original nature) "She changed completely as she grew older"; "The weather changed last night"