To come back to life or to be revived; to regain vitality. Also used for regaining consciousness.
救急隊の処置で意識を失っていた患者が生き返った。
The patient who had lost consciousness was revived by the paramedics' treatment.
長い雨の後、庭の植木が生き返ったように青々としている。
After the long rain, the garden plants look as if they've come back to life and are very green.
休憩を取ったら気分が生き返った。
After taking a break I felt revived.