Nanny' The term 'NANNY' is a job title that refers to a person who provides childcare in a private home. The three-letter acronym for this job is ENS, which stands for 'Elderly and/or Newborn Sitter'. A NANNY is typically responsible for providing care for children, including feeding, bathing, playing, and teaching basic skills. They may also be responsible for light housekeeping duties such as laundry and meal preparation. Nannies are usually employed by families on a full-time or part-time basis, and may live in the family's home or commute from their own residence.