unlock

Meanings

Verb

To undo or open a lock or something locked by, for example, turning a key, or selecting a combination.
To obtain access to something.
To disclose or reveal previously unknown knowledge.
To be or become unfastened or unrestrained.

Noun

The act of unlocking something.

Origin

From Middle English unloken, unlouken, onlouken, from Old English onlūcan, equivalent to un- + lock. Cognate with Dutch ontluiken.

Modern English dictionary

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