Noun

• S: (n) babysitting, baby sitting (the work of a baby sitter; caring for children when their parents are not home)

Verb

• S: (v) baby-sit, babysit (take watchful responsibility for) "I baby-sit the neighbor's plants when she is out of town"
• S: (v) baby-sit, sit, babysit (work or act as a baby-sitter) "I cannot baby-sit tonight; I have too much homework to do"