To bring back to life or consciousness; resuscitate. To impart new health, vigor, or spirit to. To restore to use, currency, activity, or notice. To restore the validity or effectiveness of. To renew in the mind; recall. To present (an old play, for example) again. To return to life or consciousness. To regain health, vigor, or good spirits. To return to use, currency, or notice. To return to validity, effectiveness, or operative condition.