Lock (l&obreve_;k), n. [AS. locc; akin to D. lok, G. locke, OHG. loc, Icel. lokkr, and perh. to Gr. &unr_; to bend, twist.] A tuft of hair; a flock or small quantity of wool, hay, or other like substance; a tress or ringlet of hair.
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These gray locks, the pursuivants of death. Shak.
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Lock, v. t. [imp. & p. p. Locked (?); p. pr. & vb. n. Locking.] 1. To fasten with a lock, or as with a lock; to make fast; to prevent free movement of; as, to lock a door, a carriage wheel, a river, etc.
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2. To prevent ingress or access to, or exit from, by fastening the lock or locks of; -- often with up; as, to lock or lock up, a house, jail, room, trunk. etc.
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3. To fasten in or out, or to make secure by means of, or as with, locks; to confine, or to shut in or out -- often with up; as, to lock one's self in a room; to lock up the prisoners; to lock up one's silver; to lock intruders out of the house; to lock money into a vault; to lock a child in one's arms; to lock a secret in one's breast.
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4. To link together; to clasp closely; as, to lock arms. “ Lock hand in hand.” Shak.
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5. (Canals) To furnish with locks; also, to raise or lower (a boat) in a lock.
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6. (Fencing) To seize, as the sword arm of an antagonist, by turning the left arm around it, to disarm him.
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