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We found 17 dictionaries with English definitions that include the word belt up: Click on the first link on a line below to go directly to a page where "belt up" is defined. General (13 matching dictionaries) belt up: Collins English Dictionary [home, info] belt up: Vocabulary.com [home, info] belt up: Merriam-Webster's Online Dictionary, 11th Edition [home, info] belt up: Cambridge Advanced Learner's Dictionary [home, info] belt up: Dictionary.com [home, info] belt up: Rhymezone [home, info] belt up: Free Dictionary [home, info] belt up: Mnemonic Dictionary [home, info] belt up: WordNet 1.7 Vocabulary Helper [home, info] belt up: LookWAYup Translating Dictionary/Thesaurus [home, info] belt up: Dictionary/thesaurus [home, info] Belt up: Phrase Finder [home, info] Miscellaneous (1 matching dictionary) belt up: Idioms [home, info] Slang (2 matching dictionaries) belt up: English slang and colloquialisms used in the United Kingdom [home, info] Belt up: Urban Dictionary [home, info] Tech (1 matching dictionary) Belt up: AUTOMOTIVE TERMS [home, info]

Quick definitions from WordNet (belt up) ▸ verb:  refuse to talk or stop talking; fall silent