contraction of 'are not' — the negative form of the verb 'be' used with plural subjects (you, we, they) and in negative questions (e.g., 'Aren't you coming?').

『are not』の短縮形。be動詞の否定形で、主語が you, we, they（複数）などのときや否定疑問で用いる（例：'Aren't you coming?'＝『来ないのですか？』）

used in negative interrogative sentences to ask for confirmation or express surprise (e.g., 'Arent they here yet?').

否定疑問文で確認や驚きを表す用法（例：'Arent they here yet?'＝『まだ来ていないのですか？』）