1 drop /ˈdrɑːp/ noun
plural drops
1 drop
plural drops
Learner's definition of DROP
[count] : a very small amount of liquid that falls in a rounded shape
often + of
see also dewdrop, raindrop, teardrop
[count] informal : a small amount of a drink usually singular
[singular] : a small amount of something (such as a quality)
drops [plural] : liquid medicine that is measured in drops and put into your eyes, ears, or nose
[count] : a usually small, round piece of candy with a particular flavor see also cough drop, gumdrop
: the distance from a higher to a lower level usually singular
: an area that goes downward suddenly
[count] : a decrease in amount or quality usually singular often + in
[count] informal
: the act of taking something (such as something secret or illegal) to a place and leaving it there
: a place where something is taken to and left to be picked up see also airdrop, mail drop
[count] American football : a move back from the line of scrimmage usually singular

a drop in the bucket

(US) informal or British a drop in the ocean
: an amount that is so small that it does not make an important difference or have much effect

at the drop of a hat

: very quickly and immediately
2 drop /ˈdrɑːp/ verb
drops; dropped; dropping
2 drop
drops; dropped; dropping
Learner's definition of DROP
[+ object] : to let (something) fall
[no object] : to fall
[no object]
: to lie down or fall down suddenly
: to lie down or become unconscious because you are sick or exhausted : collapse
[no object] : to go down suddenly and form a steep slope
[no object] : to change to a lower level, amount, position, etc.
[+ object] : to cause (something) to lessen or decrease in level or amount
[+ object] : to send (someone) a letter, note, etc.
[+ object] : to stop talking or thinking about (something)
[no object] : to stop being talked about
[+ object] : to stop doing or continuing with (something)
[+ object] : to not include (someone or something)
[+ object] : to suddenly end a relationship or connection with (someone)
[+ object] : to take (someone or something) to a place and then leave
often + off
always followed by an adverb or preposition, [no object] : to make a brief social visit usually + by or in or over
see also drop-in
[+ object] : to say (something) in an informal or casual way
[+ object] informal : to lose (a game)
[+ object] informal : to spend (an amount of money) usually + on
[+ object] informal : to lose (an amount of weight)
: to move down
[+ object]
[no object]
[+ object] knitting : to let (a loop of yarn) fall off a knitting needle
[+ object] : to not pronounce (a letter) when you speak
[+ object] informal : to take (a drug) by swallowing it

drop a brick

British, informal or drop a clanger
: to make a very bad or embarrassing mistake

drop back

[phrasal verb] American football
: to move straight back from the line of scrimmage

drop dead

see 1dead

drop in/into/on your lap

see 1lap

drop off

[phrasal verb]
: to decrease in amount
: to fall asleep
see also 2drop 10 (above)

drop out

[phrasal verb]
: to stop attending a school or university before you have completed your studies often + of
: to stop being part of a group usually + of
: to stop being involved in regular society because you do not agree with or support its rules, customs, and values
see also dropout

drop out of sight

: to stop being seen

drop the ball

see 1ball

jaw drops

see 1jaw

the bottom drops out

see 1bottom

the penny drops

see penny

you could hear a pin drop

see 1pin