The lever in a motor car which operates the brakes when applied by pulling with the hand.(noun)
To apply the handbrake in a vehicle.(verb)
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Use "handbrake" in a sentence
"It came to the end of the shift and the loco was to be 'screwed down' which means that the handbrake is applied by turning a hefty wheel in the cab."
"And notice the light that lit on the dashboard, a classic example on how to check if your handbrake is active/unfreed."
"Nevertheless, Steffen believes the formation of moulins can act to release a glacier's handbrake, that is a static glacier can move if meltwater helps to lubricate its passage."