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We found 24 dictionaries with English definitions that include the word halloo:
Click on the first link on a line below to go directly to a page where "halloo" is defined.

General (23 matching dictionaries)

1. halloo: Merriam-Webster.com [home, info]
2. halloo: Oxford Learner's Dictionaries [home, info]
3. halloo: American Heritage Dictionary of the English Language [home, info]
4. halloo: Collins English Dictionary [home, info]
5. halloo: Vocabulary.com [home, info]
6. Halloo, halloo: Wordnik [home, info]
7. halloo: Wiktionary [home, info]
8. halloo: Webster's New World College Dictionary, 4th Ed. [home, info]
9. halloo: The Wordsmyth English Dictionary-Thesaurus [home, info]
10. halloo: Infoplease Dictionary [home, info]
11. Halloo, halloo: Dictionary.com [home, info]
12. halloo: UltraLingua English Dictionary [home, info]
13. Halloo: Wikipedia, the Free Encyclopedia [home, info]
14. Halloo: Online Plain Text English Dictionary [home, info]
15. halloo: Webster's Revised Unabridged, 1913 Edition [home, info]
16. halloo: Rhymezone [home, info]
17. Halloo: AllWords.com Multi-Lingual Dictionary [home, info]
18. halloo: Webster's 1828 Dictionary [home, info]
19. halloo: Free Dictionary [home, info]
20. halloo: Mnemonic Dictionary [home, info]
21. halloo: WordNet 1.7 Vocabulary Helper [home, info]
22. halloo: LookWAYup Translating Dictionary/Thesaurus [home, info]
23. halloo: Dictionary/thesaurus [home, info]

Miscellaneous (1 matching dictionary)

24. halloo: Idioms [home, info]

(Note: See halloos for more definitions.)

Quick definitions from WordNet (halloo) ▸ noun:  a shout to attract attention ("He gave a great halloo but no one heard him") ▸ verb:  shout `halloo', as when greeting someone or attracting attention ▸ verb:  urge on with shouts ("Halloo the dogs in a hunt") ▸ Also see halloos ▸ Words similar to halloo ▸ Usage examples for halloo ▸ Idioms related to halloo (New!) ▸ Popular adjectives describing halloo ▸ Words that often appear near halloo ▸ Rhymes of halloo ▸ Invented words related to halloo