verb (used without object), ba·by-sat, ba·by-sit·ting.
to take charge of a child while the parents are temporarily away.
verb (used with object), ba·by-sat, ba·by-sit·ting.
to baby-sit for (a child): We've placed an ad for someone to baby-sit the youngsters in the evening.
to take watchful responsibility for; tend: It will be necessary for someone to baby-sit the machine until it is running properly.
Origin of baby-sit
First recorded in 1945–50
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for baby-sitter
Historical Examples of baby-sitter
So then I went to the home of the person I normally have for a baby-sitter.Warren Commission (3 of 26): Hearings Vol. III (of 15)
The President's Commission on the Assassination of President Kennedy
a person who takes care of a child or children while the parents are out
verb -sits, -sitting or -sat
(intr) to act or work as a baby-sitter
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012