(idiomatic) Events and outcomes cannot be known beforehand.

(idiomatic) To speak frankly, to convey all and only the truth of a situation.

Alternative form of show and tell

(idiomatic, informal) Used to positively assert the frank honesty of an associated statement of set of statements; equivalent to "to tell the truth".

Used other than figuratively or idiomatically: see tell, truth.

(idiomatic) An attestation to the truthfulness and frankness of an associated statement.

(idiomatic) To perceive things as different, or to perceive their difference itself; to differentiate, distinguish, discriminate.

(idiomatic) To lie, to be making false claims.

plural of tell tale

(transitive) To rebuke, to reprimand, or to admonish, often in a harsh, angry, direct way. / (transitive) To count (members of a sequence), to enumerate.