sheep dog

Từ điển WordNet v3.1 - WordNet Dictionary

noun

any of various usually long-haired breeds of dog reared to herd and guard sheep
• Syn:
shepherd dog, sheepdog
• Hypernyms:
working dog
• Hyponyms:
Belgian sheepdog, Belgian shepherd, briard, kelpie, komondor,
Old English sheepdog, bobtail, Shetland sheepdog, Shetland sheep dog, Shetland, collie,
Border collie, Bouvier des Flandres, Bouviers des Flandres, Rottweiler, German shepherd, German shepherd dog,
German police dog, alsatian