lock

lock · noun/verb

imported

Definitions

noun/verb

  1. 1.

    A device for securing a door, container, or lid, typically operated by a key.

  2. 2.

    To fasten or secure with a lock.

  3. 3.

    A section of a canal or river with gates at each end, used for raising or lowering boats.

  4. 4.

    To become fixed or immovable.

  5. 5.

    A strand or curl of hair.

Forms

plural: locks

Phrases & expressions

  • •
    lock and key — securely locked away
  • •
    lock horns — to engage in conflict
  • •
    lock, stock, and barrel — completely, entirely
  • •
    under lock and key — securely locked up

Related words

Antonyms: open, unlock
See also: key, secure, unlock
Synonyms: bolt, fasten, secure

Etymology

From Old English loc ("bolt, fastening, enclosure"), related to Old Norse lok ("lid, cover") and German Loch ("hole"). The hair sense comes from a different Old English word locc ("lock of hair").