Without context that may be needed for understanding the original meaning.

If you fail you will not be given a second chance.

(baseball) To hit a fair ball so well that the ball flies over all of the spectators' seats and lands outside the stadium. / (idiomatic, by extension) To produce a spectacular achievement.

(transitive) To form (a word) from letters; say the letters in a word. / (transitive, when writing or editing) To replace an acronym with its expansion.

(transitive) To question and listen attentively in order to discover a person's opinion, intent, or preference, especially by using indirect conversational remarks.

(transitive) To neutralize the effect of. / (intransitive) Of two or more things: to neutralize each other's effect.

Not operational; not functioning properly.

Not available for use.

In a place where one cannot see it.

Alternative form of take a leaf out of someone's book