dog bent vs bent

dog bent and bent both are nouns.

Word	Noun	Adjective	Verb	Adverb
dog bent	Yes	No	No	No
bent	Yes	Yes	No	No

As nouns, bent is a hypernym of dog bent; that is, bent is a word with a broader meaning than dog bent:

Other hypernyms of dog bent include bent-grass, bent grass.

dog bent (noun)	bent (noun)
common grass with slender stems and narrow leaves	a special way of doing something
	a relatively permanent inclination to react in a particular way
	an area of grassland unbounded by fences or hedges
	grass for pastures and lawns especially bowling and putting greens

dog bent (adjective)	bent (adjective)
	of metal e.g.
	fixed in your purpose
	used of the back and knees; stooped