Definition of "child's play" []

• Something very easy to do. (noun)
• A trivial matter. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "They lay across the whole Peninsula, and our army was so far from home that we did not dare to risk a reverse, and we had already learned at Busaco that it was no child's play to fight against these people."
• "Overriding outdated civilian security hardware aboard the ship was child's play for the milspec programming Phule had ordered installed in his robot double."
• "Washing the love stains off Camille's ridiculously expensive sheets was child's play next to the mess Menolly left."