nanny

historically this described a woman servant who had charge of young children. In Great Britain today it refers to a woman who has two or more years of formal training, has passed a national examination, and sometimes has served an internship. No certification boards or examinations are offered for nannies in the United States, but a few programs offer nanny training. A U.S. nanny is usually someone who cares for children full-time in the home. Otherwise use inclusive terms: babysitter, live-in babysitter, family/parents' helper, childcare worker/specialist, child minder/monitor/attendant, nursery worker, tutor.