be child's play

1. To be very easy. Oh please, I've been playing guitar for 20 years—that song is child's play.

2. To be insignificant. Those drafts are child's play compared to my latest one—I think I really have a strong argument now.

to be very easy Using this new computer is child's play.

Name	Pronounced	Usage
Faddey	-	Russian
Darejani	-	Georgian
KlÁRa	-	Hungarian, Czech, Slovak
Jarmo	YAHR-mo	Finnish
John	[dʒɔn]
Carolyn	['kærəlin]