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
Recent Examples of mastiff from the Web
Martha, a 125-pound Neapolitan mastiff, was crowned World's Ugliest Dog for 2017.
Stephanie Manginelli is proud of her French Mastiffs.
The English Mastiff left his paw print in the cement as well.
Tanner, a 3-year-old, 78-pound neutered mastiff-hound mix, is available from the Humane Society of Fairfax County.
Shyla, a mastiff, was injured when the pet carrier fell to the ground in January.
A not-young actor, terminally ill with cancer and living in Madrid with Truman, his aging bull mastiff, gets a surprise visit from an old friend who has flown in from Canada and can stay for only four days.
Silverman further populates her wuthering heights with a winsome governess (Chasten Harmon), a typhoid maid (Hannah Cabell), a talking moorhen (Teresa Avia Lim), and a glum mastiff (Andrew Garman).
Louise Hermida was attacked by her mastiff on 27th street in Queens around 1 a.m., law-enforcement officials said.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'mastiff'. Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
MASTIFF Defined for English Language Learners
Definition of mastiff for English Language Learners
: a type of large, powerful dog
MASTIFF Defined for Kids
Definition of mastiff for Students
: a very large powerful dog with a smooth coat
Seen and Heard
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