knack vs bent

knack and bent both are nouns.

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

As nouns, knack and bent are synonyms defined as:

Other synonyms of knack include hang.

knack (noun)	bent (noun)
a special way of doing something	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

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