[latʃ], (Noun)

Definitions:
- a metal bar with a catch and lever used for fastening a door or gate
(e.g: lifting the latch, she pushed the gate open)

- a circuit which retains whatever output state results from a momentary input signal until reset by another signal


Phrases:
- on the latch

Origin:
Old English læccan ‘take hold of, grasp (physically or mentally’), of Germanic origin

[latʃ], (Verb)

Definitions:
- fasten (a door or gate) with a latch
(e.g: she latched the door carefully)

- (of a device) become fixed in a particular state
(e.g: the output relay can be set to latch at a preset value)


Phrases:
- on the latch

Origin:
Old English læccan ‘take hold of, grasp (physically or mentally’), of Germanic origin