Pronunciation: (bā'bē-sit"), [key]
—v., -sat, -sit•ting.
to take charge of a child while the parents are temporarily away.
1. to baby-sit for (a child): We've placed an ad for someone to baby-sit the youngsters in the evening.
2. to take watchful responsibility for; tend: It will be necessary for someone to baby-sit the machine until it is running properly. Also,ba'by•sit".
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.