give the lie to something Definition

lie¹
noun

1. A false statement made with the intention of deceiving.

Thesaurus: falsehood, untruth, fib, fabrication, deceit, white lie, whopper (slang).
2. Anything misleading; a fraud.

Example: live a lie

verb, intr lied, lying

1. To say things that are not true with the intention of deceiving.

Thesaurus: fib, perjure oneself, dissimulate.
2. To give a wrong or false impression.

Example: The camera never lies

Idiom: give the lie to someone or something

originally
To accuse them of lying.

now
To show (a statement, etc) to be false.

Idiom: lie through one's teeth

To tell blatant lies. See liar, white lie.

Etymology: Anglo-Saxon lyge.