Great joy or delight; jubilation and strong feelings of happiness.
子供たちはプレゼントをもらって大喜びした。
The children were overjoyed to receive the presents.
合格の知らせに両親は大喜びだった。
The parents were overjoyed at the news of the acceptance.
彼は賞を取って大喜びで友人に電話した。
He joyfully called his friends after winning the prize.