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Definition of mastiff

mastiff

/ˈmæs.tɪf/
mas · tiff
Plural:mastiffs
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mastiff Lexical Profile

mastiff Game Scores & Validity

• noun

1

A large, powerful breed of dog characterized by a massive head, short coat, and strong build, traditionally bred and used as a guard dog.

Example

"The ancient estate was guarded by an imposing mastiff that patrolled the grounds with steady vigilance."

Synonyms
View all synonyms for mastiff

• Nearby Words

masterpiece
masterwort
mastic
mastiff
mastigure
mastodon
mat

Word Origin & Etymology

From Middle English 'mastif', derived from Old French 'mastin', which traces back to Vulgar Latin 'mansuetinus' (tamed, domesticated), from Latin 'mansuetus' (tame).

Usage Trend

Historical frequency of usage in published text.

180019102020
Data source: Google Books Ngram Viewer

Cite this Entry

Wordmom. (2026). Definition of Mastiff. In Wordmom Dictionary. Retrieved Oct 12, 2026, from https://wordmom.com/dictionary/mastiff
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