/ ˈpædlɒk; NAmE -lɑːk/ noun , verb
■ noun
a type of lock that is used to fasten two things together or to fasten one thing to another. Padlocks are used with chains on gates, etc.
■ verb
[ vn ] padlock sth (to sth) to lock sth with a padlock :
She always padlocked her bike to the railings.
The doors were padlocked.
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WORD ORIGIN
late 15th cent.: from pad- (of unknown origin) + the noun lock .