child's play
Proposed by a contributor, not yet supported by evidence.
Meaning · English
a task that is very easy to do
Literally: activities or work typically done by children
Where it’s used:
Used
Widespread English
Examples
Just rub in a little every night and morning and make child's play out of keeping your skin looking young.
If we knew the connection between the poem and what's written on those sheets, then cracking the code would be child's play.
British National Corpus sentence via the MAGPIE corpus (CC BY 4.0, retrieved 2026-07-30)
Sources & notes
Listed in Wiktionary’s “English idioms” category (retrieved 2026-07-29); definition pending editorial review. Definition drafted by AI (@cf/meta/llama-3.3-70b-instruct-fp8-fast) and auto-approved by rule on 2026-07-30; pending editor spot-check.
Common questions
What does “child's play” mean?
a task that is very easy to do Literally: activities or work typically done by children
Is “child's play” formal or informal?
No register label has been reviewed yet — treat it as neutral and check the usage notes above.