We found 12 dictionaries that define the word in check:

General (7 matching dictionaries)

1. in check: Merriam-Webster
2. in check: Oxford Learner's Dictionaries
3. in check: Collins English Dictionary
4. in check: Cambridge Advanced Learner's Dictionary
5. in check: Wiktionary
6. in check: Dictionary.com
7. in check: Rhymezone

Business (2 matching dictionaries)

8. in check: Merriam-Webster Legal Dictionary
9. in check: Legal dictionary

Miscellaneous (1 matching dictionary)

10. in check: Idioms

Slang (2 matching dictionaries)

11. Totally Unofficial Rap (No longer online)
12. in check: Urban Dictionary

Definitions from WordNet (in check) ▸ adverb:  unable to act freely ("He held the enemy's armies in check") Opposite: out of control, unchecked, unbridled, unrestrained, rampant Types: stalemate, checkmate, more... Phrases: keep in check, hold in check, kept in check, cause of more money in a pay check, to keep in check, more... ▸ Words similar to in check ▸ Usage examples for in check ▸ Idioms related to in check ▸ Wikipedia articles (New!) ▸ Words that often appear near in check ▸ Rhymes of in check ▸ Invented words related to in check