jack in
C1 neutral mixed both
In simple words
connect it in; or quit doing it
Literal meaning: To put a jack plug into something.
Meanings
1 C1 neutral
To connect a device or signal line to a machine, network, or system.
"The technician jacked in the monitor and ran a quick test."
Grammar: mixed
2 C1
idiomatic
informal
To stop doing something; to quit or give up.
"He decided to jack in his office job and travel for a year."
Grammar: separable
Usage notes
Technical in electronics/computing; in British informal English, 'jack in' can mean give up or quit.
Commonly used with
computer network system headphones job course
Forms
Base
jack in
I/you/we/they
3rd person
jacks in
he/she/it
Past simple
jacked in
yesterday
Past participle
jacked in
have + pp
-ing form
jacking in
continuous
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Synonyms
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