To make someone very happy and proud, usually because of a success.
She was elated when she got the job offer.
彼女は仕事のオファーをもらったとき、大喜びした。
To make someone feel a lot of joy or pleasure.
He was elated by the surprise party his friends threw for him.
彼は友達が彼のために開いたサプライズパーティーで大喜びした。