#1 lock v. fasten with a lock; "lock the bike to the fence". wn
#2 lock v. [engage, mesh, operate] keep engaged; "engaged the gears". wn
#3 lock n. a fastener fitted to a door or drawer to keep it firmly closed. wn
#4 lock v. become rigid or immoveable; "The therapist noticed that the patient's knees tended to lock in this exercise". wn
#5 lock n. [curl, ringlet, whorl] a strand or cluster of hair. wn
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