An expression of remorse or regret for having said or done something that harmed another: an instance of apologizing (saying that one is sorry).

"The CEO made a public apology for the scandal, and promised full cooperation with the authorities."

A formal justification, defence.

"The Apology of Socrates."

Anything provided as a substitute; a makeshift.

"a poor apology for a hotel room"

Expresses regret, remorse, or sorrow.

Used to correct oneself in speech.