1. a large, powerful dog breed originally developed by crossing bulldogs and mastiffs, typically used as a guard dog

Examples

• The bullmastiff stood guard at the front gate of the estate.
• Our bullmastiff is gentle with children but protective of the family.
• The bullmastiff’s short coat requires minimal grooming.
• Training a bullmastiff requires patience and consistency due to their strong-willed nature.
• The bullmastiff was originally bred in England in the 19th century.
• Despite their intimidating size, bullmastiffs are known for their calm temperament.