pinscher vs watchdog

pinscher and watchdog both are nouns.

Word	Noun	Adjective	Verb	Adverb
pinscher	Yes	No	No	No
watchdog	Yes	No	No	No

As nouns, watchdog is a hypernym of pinscher; that is, watchdog is a word with a broader meaning than pinscher:

pinscher: any of three breeds of dogs whose ears and tail are usually cropped
watchdog: a dog trained to guard property

Other hypernyms of pinscher include guard dog.

pinscher (noun)	watchdog (noun)
any of three breeds of dogs whose ears and tail are usually cropped	a dog trained to guard property
	a guardian or defender against theft or illegal practices or waste