1a person who sits, especially for a portrait or examination:she always hopes to imbue a portrait with the sitter’s charactersitters in an examination room
a sitting hen.
2 [usually in combination] a person who looks after children, pets, or a house while the parents or owners are away:a house-sitter
a person who provides care and companionship for people who are ill: [as modifier]:volunteers are still needed to help the hospice expand its home sitter service
3British informal (in sport) an easy catch or shot:he scored some great goals but missed some sitters
