lecture vs class

lecture and class both are nouns.

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

lecture (noun)	class (noun)
teaching by giving a discourse on some subject (typically to a class)	education imparted in a series of lessons or meetings
a speech that is open to the public	elegance in dress or behavior
a lengthy rebuke	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

lecture (verb)	class (verb)
censure severely or angrily	arrange or order by classes or categories
deliver a lecture or talk