a very small amount of liquid that falls in a round shape
drop of➔ rain drop, teardrop
As the first drops of rain began to fall, Michael started to run.
A single drop of blood splashed onto the floor.
A drop of sweat ran down her forehead and into her eye.
small amount[usually singular] informal
a small amount of liquid that you drink, especially alcohol
She likes to add a drop of brandy to her tea.
George hasn't touched a drop (=drunk any alcohol) for years.
a small amount of something
I haven't got a drop of sympathy for him.
a reduction in the amount, level, or number of something, especially a large or sudden one [= fall]
Manufacturers report a big drop in new orders.
a drop in temperature
a sharp/dramatic/marked drop in something
The results showed a sharp drop in profits.
a distance from a higher point down to the ground or to a lower point:
distance to ground[singular]DN
There was a steep drop on one side of the track.
a 20-metre drop
There was an almost sheer (=vertical) drop to the valley below.
immediately and without pausing to think about what you are going to do:
Some of these corporations threaten to sue at the drop of a hat.
an act of delivering something somewhere, for example by dropping it from a plane [= delivery]: ➔ mail drop
Air drops (=from a plane) of food aid were made to the region yesterday.
My first drop of the day is usually somewhere in north London.
a sweet that tastes of lemon etc
8 British English, a drop in the bucket American English
a very small amount of something compared to what is needed or wanted:
5000 new schools are to be built, but this is just a drop in the ocean for such a vast country.
a type of medicine that you put in your eye, ear etc, one drop at a time