class vs describe

class is a noun but describe is not a noun.

Word	Noun	Adjective	Verb	Adverb
class	Yes	No	Yes	No
describe	No	No	Yes	No

class (noun)	describe (noun)
education imparted in a series of lessons or meetings
elegance in dress or behavior
a collection of things sharing a common attribute
people having the same social, economic, or educational status
(biology) a taxonomic group containing one or more orders
a body of students who are taught together
a body of students who graduate together
a league ranked by quality

class (verb)	describe (verb)
arrange or order by classes or categories	identify as in botany or biology, for example
	give a description of
	to give an account or representation of in words
	make a mark or lines on a surface