We found 34 dictionaries with English definitions that include the word boo:
Click on the first link on a line below to go directly to a page where "boo" is defined.
 General (21 matching dictionaries)
- boo: Compact Oxford English Dictionary [home, info]
- boo, boo: American Heritage Dictionary of the English Language [home, info]
- boo: Merriam-Webster's Online Dictionary, 11th Edition [home, info]
- boo: Cambridge International Dictionary of English [home, info]
- Boo: Wiktionary [home, info]
- boo: Webster's New World College Dictionary, 4th Ed. [home, info]
- boo: The Wordsmyth English Dictionary-Thesaurus [home, info]
- boo: Infoplease Dictionary [home, info]
- BOO: Dictionary.com [home, info]
- boo: Online Etymology Dictionary [home, info]
- boo: UltraLingua English Dictionary [home, info]
- boo: Cambridge Dictionary of American English [home, info]
- boo: Cambridge International Dictionary of Idioms [home, info]
- Boo (Dark Angel), Boo (Dragon Ball), Boo (Mario Brothers), Boo (Nintendo), Boo (disambiguation), Boo (film), Boo (programming language), Boo, Boo, The Boo (book): Wikipedia, the Free Encyclopedia [home, info]
- boo: Rhymezone [home, info]
- BOO, Boo, Boo: Stammtisch Beau Fleuve Acronyms [home, info]
- boo: Free Dictionary [home, info]
- boo: Mnemonic Dictionary [home, info]
- boo: WordNet 1.7 Vocabulary Helper [home, info]
- boo: LookWAYup Translating Dictionary/Thesaurus [home, info]
- boo: Dictionary/thesaurus [home, info]
Computing (1 matching dictionary)
- boo: Encyclopedia [home, info]
Medicine (4 matching dictionaries)
- BOO: Prostate Cancer Interactive Glossary [home, info]
- BOO: MEDLINE plus Illustrated Medical Encyclopedia [home, info]
- BOO, Boo (disambiguation), Boo: Medical dictionary [home, info]
- BOO: University of Maryland Glossary of Medical Terms [home, info]
Miscellaneous (4 matching dictionaries)
- BOO: Acronym Finder [home, info]
- BOO: Three Letter Words with definitions [home, info]
- BOO: AbbreviationZ [home, info]
- boo: Idioms [home, info]
Science (1 matching dictionary)
- BOO: Cytokines & Cells Online Pathfinder Encyclopaedia [home, info]
Slang (3 matching dictionaries)
- Boo: Totally Unofficial Rap [home, info]
- boo: Colloquial Speech of Carleton County, New Brunswick, Canada [home, info]
- Boo: Street Terms: Drugs and the Drug Trade [home, info]
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Quick definitions (boo)
▸ noun: a cry or noise made to express displeasure or contempt
▸ verb: show displeasure, as after a performance or speech
▸ Word origin
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