Third-person singular simple present indicative form of chock.(verb)
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Use "chocks" in a sentence
"Screw in chocks, adjustable stock shims, light weight, light recoil and great relieability."
"When thoroughly satisfied, each aviator took his place and his pilot signalled for the "chocks" to be withdrawn from in front of the wheels."
"And with so great expedition, that in less than a week thereafter, the craft is ready for launching, and on the next day it is run off the "chocks" into the water, a score of the Fuegian men lending helping hands."