heal / hēl/ • v. [tr.] (of a person or treatment) cause (a wound, injury, or person) to become sound or healthy again: his concern is to heal sick people | [as adj.] (healing) a healing effect on the entire body | [as n.] (healing) the gift of healing. ∎ [intr.] become sound or healthy again: he would have to wait until his knee had healed. ∎ alleviate (a person's distress or anguish): time can heal the pain of grief. ∎ correct or put right (an undesirable situation): the rift between them was never really healed.DERIVATIVES: heal·a·ble adj.heal·er n.