unpleasant woman vs dog

unpleasant woman and dog both are nouns.

Word	Noun	Adjective	Verb	Adverb
unpleasant woman	Yes	No	No	No
dog	Yes	No	Yes	No

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

Other hyponyms of unpleasant woman include bag, old bag, cow, dragon, tartar, frump, she-devil, shrew, termagant, harpy, hellcat, vixen.

unpleasant woman (noun)	dog (noun)
a woman who is an unpleasant person	a member of the genus Canis (probably descended from the common wolf) that has been domesticated by man since prehistoric times; occurs in many breeds
	a hinged catch that fits into a notch of a ratchet to move a wheel forward or prevent it from moving backward
	metal supports for logs in a fireplace
	a smooth-textured sausage of minced beef or pork usually smoked; often served on a bread roll
	informal term for a man
	a dull unattractive unpleasant girl or woman
	someone who is morally reprehensible

unpleasant woman (verb)	dog (verb)
	go after with the intent to catch