The emergence and separation of offspring from the body of the mother. The act or process of bearing young; parturition: the mare's second birth. The circumstances or conditions relating to this event, as its time or location: an incident that took place before my birth; a Bostonian by birth. The set of characteristics or circumstances received from one's ancestors; inheritance: strong-willed by birth; acquired their wealth through birth. Origin; extraction: of Swedish birth; of humble birth. Noble or high status: persons of birth. A beginning or commencement. See Synonyms at beginning. Chiefly Southern U.S. To deliver (a baby). Chiefly Southern U.S. To bear (a child).