in truth Definition

truth
noun

1. The quality or state of being true, genuine or factual.

Thesaurus: truthfulness, veracity, correctness, fidelity, genuineness, accuracy, verisimilitude.
2. The state of being truthful; sincerity; honesty.

Thesaurus: truthfulness, veracity, sincerity, candor, honesty, frankness, genuineness.
3. That which is true.
4. That which is established or generally accepted as true.

Example: scientific truths
5. Strict adherence to an original or standard.

Idiom: God's (honest) truth

Something that is absolutely true.

Idiom: in truth

Really, actually.

Idiom: to tell the truth (truth to tell)

To be frank or honest.
Example: To tell the truth, I really can't stand her

Idiom: truth will out

The truth will always come to light.

Etymology: Anglo-Saxon treowth.