We found 24 dictionaries that define the word classroom:

General (21 matching dictionaries)

1. classroom: Merriam-Webster
2. classroom: Oxford Learner's Dictionaries
3. classroom: American Heritage Dictionary of the English Language
4. classroom: Collins English Dictionary
5. classroom: Vocabulary.com
6. Classroom, classroom: Wordnik
7. classroom: Cambridge Advanced Learner's Dictionary
8. classroom: Wiktionary
9. classroom: Webster's New World College Dictionary, 4th Ed.
10. classroom: The Wordsmyth English Dictionary-Thesaurus
11. classroom: Infoplease Dictionary
12. classroom: Dictionary.com
13. classroom: Cambridge Essential American English Dictionary
14. Classroom (Apple), Classroom: Wikipedia, the Free Encyclopedia
15. classroom: Rhymezone
16. classroom: FreeDictionary.org
17. classroom: Mnemonic Dictionary
18. classroom: TheFreeDictionary.com
19. classroom: Longman Dictionary of Contemporary English

Business (1 matching dictionary)

20. Construction Term Glossary (No longer online)

Medicine (1 matching dictionary)

21. online medical dictionary (No longer online)

Miscellaneous (1 matching dictionary)

22. Brilliant Dream Dictionary (No longer online)

(Note: See classrooms as well.)

Definitions from Wiktionary ( ) ▸ noun:  A room, often in a school, where classes take place. Similar: schoolroom, school, teacher, schoolhouse, curriculum, teacherless, lunchroom, teaching, pedagogy, kindergarten, more... Opposite: outdoor, playground, home, office, wilderness Phrases: Classroom management, open classroom, virtual classroom, classroom assistant, portable classroom, more... Adjectives: regular, grade, own, traditional, elementary, open, typical, primary, english, general, virtual Colors:     blue,     green,     red,     yellow,     orange, more... ▸ Words similar to classroom ▸ Usage examples for classroom ▸ Idioms related to classroom ▸ Wikipedia articles (New!) ▸ Popular adjectives describing classroom ▸ Words that often appear near classroom ▸ Rhymes of classroom ▸ Invented words related to classroom