1. A female, flush or panel-mount, connector
, usually found in a patchbay
. May also be used to refer to any female connector, such as the female side of an audio adapter
. Hence, a male RCA
to a female BNC
becomes an RCA plug to BNC jack.
2. Scenic. A supporting frame, see stage jack
, lift jack
, tip jack
3. Verb or noun. To temporarily raise often only one side of an object: "Jack up the car to change a tire." "Use a garage jack to do that."