ba·by·sit 
/ˈbeɪbiˌsɪt/ verb
ba·by·sits; ba·by·sat /ˈbeɪbiˌsɪt/ verb /-ˌsæt/ ba·by·sit·ting : to take care of a child while the child's parents are away [+ obj] ▪ She babysits their kids on Saturday nights. [no obj] ▪ She babysits (for my wife and me) on Saturday nights.
— ba·by·sit·ter noun, plural ba·by·sit·ters [count]
▪ Did you pay the babysitter?
▪ Did you pay the babysitter?
