To talk about your own achievements or possessions in a proud way, often more than is necessary.
He often vaunts about his successful career to his friends.
彼は友人たちに自分の成功したキャリアについてよく自慢している。
A statement or action that is meant to show off your achievements or possessions in a proud way.
His stories of wealth are just empty vaunts without any proof.
彼の富についての話は、いかなる証拠もなく単なる空洞な自慢に過ぎない。