We found 18 dictionaries that define the word child's play:

General (15 matching dictionaries)

1. child's play: Merriam-Webster
2. child's play: Oxford Learner's Dictionaries
3. child's play: American Heritage Dictionary of the English Language
4. child's play, child's play: Collins English Dictionary
5. child's play: Vocabulary.com
6. child's-play, child's play: Wordnik
7. child's play: Wiktionary
8. child's play: The Wordsmyth English Dictionary-Thesaurus
9. child's play: Infoplease Dictionary
10. Child's play, child's play, childs play: Dictionary.com
11. Child's Play, Child's Play (Australian game show), Child's Play (Ichiyo Higuchi novella), Child's Play (Kia Abdullah novel), Child's Play (UK game show), Child's Play (band), Child's Play (candy), Child's Play (charity), Child's Play (comics), Child's Play (film series), Child's Play (franchise), Child's Play (game show), Child's Play (module), Child's Play (play), Childs Play (website), Childs play: Wikipedia, the Free Encyclopedia
12. child's play: Rhymezone
13. childs play: FreeDictionary.org
14. child's play: Mnemonic Dictionary
15. child's play: TheFreeDictionary.com

Computing (1 matching dictionary)

16. child's play: Encyclopedia

Miscellaneous (1 matching dictionary)

17. child's play: Idioms

Slang (1 matching dictionary)

18. childs play: Urban Dictionary

Definitions from Wiktionary (child's play) ▸ noun:  (idiomatic) Something particularly easy or simple. Opposite: serious, hard, challenging, demanding Phrases: opposite of childs play, more... ▸ Words similar to child's play ▸ Usage examples for child's play ▸ Idioms related to child's play ▸ Wikipedia articles (New!) ▸ Words that often appear near child's play ▸ Rhymes of child's play ▸ Invented words related to child's play