Definition of mastiff Mastiff

/mæˈstʌf/ - [mastuf] - mas•tiff

We found 5 definitions of mastiff from 5 different sources.

What does mastiff mean?

Plural: mastifves

mastiff - an old breed of powerful deep-chested smooth-coated dog used chiefly as a watchdog and guard dog

working dog any of several breeds of usually large powerful dogs bred to work as draft animals and guard and guide dogs

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mastiff (Noun)
One of several large breeds of dog such as bulldogs and Saint Bernard s, often used as guard dogs.

mastiff (n.)
A breed of large dogs noted for strength and courage. There are various strains, differing in form and color, and characteristic of different countries.

mastiff
One of several large breeds of dog (such as bulldogs and Saint Bernards), often used as guard dogs

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mastiff in sign language