apology

The word “apology” means a statement expressing regret for a mistake or offense. In plain terms, saying sorry, formally or informally, for something wrong you did.

“Apology” is pronounced uh-POL-uh-jee (/əˈpɑ.lə.d͡ʒi/ in IPA).

Here is “apology” used in a sentence: “He offered a sincere apology for the mix-up.”

“Apology” is a noun.

The word “apology” comes from Greek. From Greek apologia, "a speech made in one's own defense," from apo- ("away/off") plus logos ("speech").

“Apology” is a fairly common word in modern English, usually learned at around the B1 level.

An apology is a statement expressing regret for a mistake or offense, and it accepts responsibility. An excuse explains or justifies the behaviour, usually to reduce responsibility. "I'm sorry I was late" is an apology; "the traffic was terrible" is an excuse — and many real statements try to be both at once.

Use the plural "my apologies" as the set phrase for saying sorry: "My apologies for the delay." The singular "my apology" is used when referring to a specific apology as a thing, as in "he refused to accept my apology."

Apology is the noun — the statement of regret itself — while apologize is the verb, the act of offering one: "She apologized" versus "She offered an apology." British English also spells the verb apologise.

Yes. "Apologies for the confusion" or simply "Apologies" is accepted, slightly brisk business shorthand for "I apologize." It reads as polite but efficient; for a serious mistake, a full sentence such as "I'm sorry" or "I sincerely apologize" sounds more genuine.