mastiff

noun mas·tiff \ˈmas-təf\

: a type of large, powerful dog

Full Definition of MASTIFF

: any of a breed of very large massive powerful smooth-coated dogs that are apricot, fawn, or brindle and are often used as guard dogs

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Middle English mastif, from Medieval Latin mastivus, from Vulgar Latin *masuetivus, from Latin mansuetus tame — more at mansuetude

First Known Use: 14th century

MASTIFF Defined for Kids

noun mas·tiff \ˈma-stəf\

: a very large powerful dog with a smooth coat

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