spitz vs Samoyed

spitz and Samoyed both are nouns.

Word	Noun	Adjective	Verb	Adverb
spitz	Yes	No	No	No
Samoyed	Yes	No	No	No

As nouns, Samoyed is a hyponym of spitz; that is, Samoyed is a word with a more specific, narrower meaning than spitz:

spitz: any of various stocky heavy-coated breeds of dogs native to northern regions having pointed muzzles and erect ears with a curled furry tail
Samoyed: Siberian breed of white or cream-colored dog of the spitz family

Other hyponyms of spitz include Samoyede, Pomeranian, chow, chow chow, keeshond.

spitz (noun)	Samoyed (noun)
any of various stocky heavy-coated breeds of dogs native to northern regions having pointed muzzles and erect ears with a curled furry tail	Siberian breed of white or cream-colored dog of the spitz family
	the Uralic languages spoken by the Samoyed in northwestern Siberia
	a Samoyedic-speaking person in northwestern Siberia