gun dog
Synonym discussion
Sense: noun/1
These terms all describe dogs that help people hunt, but they differ in scope and specialisation. 'Hunting dog' is the broadest category, covering any breed used to track, chase, or retrieve game of any kind — from rabbits to deer to birds. 'Bird dog' narrows the focus to upland bird hunting and is casual, most common in American English. 'Retriever' refers to a specific group of breeds (Labrador, Golden, Chesapeake Bay) developed to carry shot birds back gently in their mouths. 'Hound' forms a separate branch — scent hounds and sight hounds chase live prey but are not typically described as gun dogs because they do not retrieve downed birds. For example, a Beagle is a hound used for rabbits, not a gun dog; a Labrador is both a retriever and a gun dog.
Common collocations
Etymology
The compound 'gun dog' comes from the combination of 'gun' (a weapon that fires projectiles) and 'dog' (the domesticated canine). It emerged in the 19th century when hunting with firearms became common and specialised breeds such as retrievers and spaniels were developed to assist hunters by locating and retrieving downed birds. The term is first recorded in English around the 1830s.