become destroyed by water, air, or an etching chemical such as an acid; "The metal corroded"; "The pipes rusted"
cause to deteriorate due to the action of water, air, or an acid; "The acid corroded the metal"; "The steady dripping of water rusted the metal stopper in the sink"
a mishap caused by something suddenly falling down or caving in
an abrupt failure of function or health
lose significance, effectiveness, or value; "The school system is collapsing"; "The stock market collapsed"
break down, literally or metaphorically; "The wall collapsed"; "The business collapsed"; "The dam broke"; "The roof collapsed"; "The wall gave in"; "The roof finally gave under the weight of the ice"
cause to burst; "The ice broke the pipe"
fold or close up; "fold up your umbrella"; "collapse the music stand"
the act of dropping something; "they expected the drop would be successful"
a central depository where things can be left or picked up
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"
a free and rapid descent by the force of gravity; "it was a miracle that he survived the drop from that height"
a predetermined hiding place for the deposit and distribution of illicit goods (such as drugs or stolen property)
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
a shape that is spherical and small; "he studied the shapes of low-viscosity drops"; "beads of sweat on his forehead"
give birth; used for animals; "The cow dropped her calf this morning"
stop pursuing or acting; "drop a lawsuit"; "knock it off!"
go down in value; "Stock prices dropped"
change from one level to another; "She dropped into army jargon"
utter casually; "drop a hint"
lose (a game); "The Giants dropped 11 of their first 13"
leave or unload, especially of passengers or cargo;
to fall vertically; "the bombs are dropping on enemy targets"
let fall to the ground; "Don't drop the dishes"
terminate an association with; "drop him from the Republican ticket"
draw in (air); "Inhale deeply"; "inhale the fresh mountain air"; "The patient has trouble inspiring"; "The lung cancer patient cannot inspire air very well"
draw deep into the lungs in by breathing; "Clinton smoked marijuana but never inhaled"