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We found 13 dictionaries with English definitions that include the word Red Hat:
Click on the first link on a line below to go directly to a page where "Red Hat" is defined.

General (9 matching dictionaries)

1. red hat: Merriam-Webster.com [home, info]
2. red hat: Oxford Learner's Dictionaries [home, info]
3. red hat: Collins English Dictionary [home, info]
4. Red-Hat: Wordnik [home, info]
5. red hat: Infoplease Dictionary [home, info]
6. Red Hat: Dictionary.com [home, info]
7. Red Hat (disambiguation), Red Hat, Red hat: Wikipedia, the Free Encyclopedia [home, info]
8. Red Hat: Dictionary of Phrase and Fable (1898) [home, info]
9. red hat: Dictionary/thesaurus [home, info]

Computing (2 matching dictionaries)

10. Red Hat: Free On-line Dictionary of Computing [home, info]
11. Red Hat (disambiguation), red hat: Encyclopedia [home, info]

Medicine (1 matching dictionary)

12. Red Hat: online medical dictionary [home, info]

Slang (1 matching dictionary)

13. Red hat, The Red Hat: Urban Dictionary [home, info]

Quick definitions from Wiktionary (red hat) ▸ noun:  (UK, military, slang) A senior army officer. ▸ Words similar to Red Hat ▸ Usage examples for Red Hat ▸ Idioms related to Red Hat (New!) ▸ Words that often appear near Red Hat ▸ Rhymes of Red Hat ▸ Invented words related to Red Hat