We found 12 dictionaries that define the word headmasters:

General (9 matching dictionaries)

1. headmasters: Merriam-Webster
2. headmasters: Collins English Dictionary
3. headmasters: Vocabulary.com
4. Headmaster's, Headmasters, Headmasters, headmaster's, headmasters: Wordnik
5. headmasters: Cambridge Advanced Learner's Dictionary
6. headmasters: Wiktionary
7. headmasters: Dictionary.com
8. Headmasters, The Headmasters: Wikipedia, the Free Encyclopedia
9. Headmasters: TheFreeDictionary.com

Business (1 matching dictionary)

10. Headmasters: Legal dictionary

Computing (1 matching dictionary)

11. Headmasters: Encyclopedia

Slang (1 matching dictionary)

12. Headmasters: Urban Dictionary

(Note: See headmaster as well.)

Definitions from Wiktionary (headmaster) ▸ noun:  (chiefly UK, Ireland) A male headteacher. ▸ Also see headmaster Opposite: students, pupils, learners, disciples ▸ Words similar to headmasters ▸ Usage examples for headmasters ▸ Idioms related to headmasters ▸ Wikipedia articles (New!) ▸ Popular adjectives describing headmasters ▸ Words that often appear near headmasters ▸ Rhymes of headmasters ▸ Invented words related to headmasters