drop

1 drop /ˈdrɑːp/ noun
plural drops
1 drop
/ˈdrɑːp/
noun
plural drops
Britannica Dictionary definition of DROP
1 
[count] : a very small amount of liquid that falls in a rounded shape
— often + of
— see also dewdrop, raindrop, teardrop
2 
[count] informal : a small amount of a drink — usually singular
3 
[singular] : a small amount of something (such as a quality)
4 
drops [plural] : liquid medicine that is measured in drops and put into your eyes, ears, or nose
5 
[count] : a usually small, round piece of candy with a particular flavor — see also cough drop, gumdrop
6 
[count]
a  : the distance from a higher to a lower level — usually singular
b  : an area that goes downward suddenly
7 
[count] : a decrease in amount or quality — usually singular — often + in
8 
[count] informal
a  : the act of taking something (such as something secret or illegal) to a place and leaving it there
b  : a place where something is taken to and left to be picked up — see also airdrop, mail drop
9 
[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
/ˈdrɑːp/
verb
drops; dropped; dropping
Britannica Dictionary definition of DROP
1 
a  [+ object] : to let (something) fall
b  [no object] : to fall
2 
[no object]
a  : to lie down or fall down suddenly
b  : to lie down or become unconscious because you are sick or exhausted : collapse
3 
[no object] : to go down suddenly and form a steep slope
4 
a  [no object] : to change to a lower level, amount, position, etc.
b  [+ object] : to cause (something) to lessen or decrease in level or amount
5 
[+ object] : to send (someone) a letter, note, etc.
6 
a  [+ object] : to stop talking or thinking about (something)
b  [no object] : to stop being talked about
7 
[+ object] : to stop doing or continuing with (something)
8 
[+ object] : to not include (someone or something)
9 
[+ object] : to suddenly end a relationship or connection with (someone)
10 
[+ object] : to take (someone or something) to a place and then leave
— often + off
11 
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
12 
[+ object] : to say (something) in an informal or casual way
13 
[+ object] informal : to lose (a game)
14 
[+ object] informal : to spend (an amount of money) — usually + on
15 
[+ object] informal : to lose (an amount of weight)
16 
: to move down
[+ object]
[no object]
17 
[+ object] knitting : to let (a loop of yarn) fall off a knitting needle
18 
[+ object] : to not pronounce (a letter) when you speak
19 
[+ 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]
1 
: to decrease in amount
2 
: to fall asleep
— see also 2drop 10 (above)

drop out

[phrasal verb]
1 
: to stop attending a school or university before you have completed your studies — often + of
2 
: to stop being part of a group — usually + of
3 
: 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