jack
10 ENTRIES FOUND:
plural
jacks
plural
jacks
Britannica Dictionary definition of JACK
1
[count]
:
a device used for lifting something heavy (such as a car)
2
[count]
:
a playing card that has a picture of a soldier or servant and that is worth more than a ten and less than a queen
—
see picture at playing card
-
the jack of hearts/spades/clubs/diamonds
3
[count]
:
a small opening where something connects with a wire to something else
-
a telephone/stereo jack
4
a
[count]
:
a small usually metal object that has six points and that is used in the game of jacks
b
jacks
[plural]
:
a child's game in which jacks are thrown and picked up while bouncing and catching a small ball
-
children playing jacks
5
[noncount]
US slang
:
anything at all
— used in negative statements
-
You don't know jack. = (offensive) You don't know jack shit.
2
jack
/ˈʤæk/
verb
jacks;
jacked;
jacking
2
jack
/ˈʤæk/
verb
jacks;
jacked;
jacking
Britannica Dictionary definition of JACK
jack in
[phrasal verb]
jack in (something)
or
jack (something) in
British, informal
:
to stop doing (something)
-
He was building a new shed but jacked it in.
-
He jacked in [=quit, gave up] his job and became a hippie.
jack off
[phrasal verb] US, informal + impolite, of a manjack up
[phrasal verb]
1
jack up (something)
or
jack (something) up
:
to lift (something, such as a car) with a jack
-
He jacked up the car and changed the tire.
2
informal
:
to increase (something, such as a price) by a large amount
-
The restaurant has jacked up its prices in recent months.
