A baby sitter is someone who cares for children while their parents are away. However, there are several other synonyms that can be used to describe this type of caregiver. One alternative is a nanny, which often refers to a more long-term caregiver who may also perform household duties. A childminder or a child care provider can also be used to describe a person who watches over children. For more casual arrangements, babysitter, sitter, or even just "the one watching the kids" are all commonly used terms. Regardless of what term is used, it's important to find a qualified and trustworthy caregiver to provide proper care for children in the absence of their parents.