Choose the perfect synonym or antonym for the word

Lock

/lɔk/

An item used to secure something closed, usually by a key or combination.

Synonyms:

Some nights he would secretly enter the locked room.

He went in quietly, locking the door behind him.

Open locks, whoever knocks! (Enter Macbeth) Macbeth:

Middle English lock, from Old English loc, related to Dutch lok and German Locke, originally meaning a fastening or enclosure.

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