guard dog vs schipperke

guard dog and schipperke both are nouns.

Word	Noun	Adjective	Verb	Adverb
guard dog	Yes	No	No	No
schipperke	Yes	No	No	No

As nouns, schipperke is a hyponym of guard dog; that is, schipperke is a word with a more specific, narrower meaning than guard dog:

guard dog: a dog trained to guard property
schipperke: breed of small stocky black dogs originally used as watchdogs on boats in the Netherlands and Belgium

Other hyponyms of guard dog include kuvasz, attack dog, housedog, pinscher.

guard dog (noun)	schipperke (noun)
a dog trained to guard property	breed of small stocky black dogs originally used as watchdogs on boats in the Netherlands and Belgium