refiner vs refine

refiner is a noun but refine is not a noun.

Word	Noun	Adjective	Verb	Adverb
refiner	Yes	No	No	No
refine	No	No	Yes	No

refiner (noun)	refine (noun)
one whose work is to refine a specific thing

refiner (verb)	refine (verb)
	reduce to a fine, unmixed, or pure state; separate from extraneous matter or cleanse from impurities
	improve or perfect by pruning or polishing
	treat or prepare so as to put in a usable condition
	attenuate or reduce in vigor, strength, or intensity by polishing or purifying
	make more precise or increase the discriminatory powers of
	make more complex, intricate, or richer