masses vs laity

masses and laity both are nouns.

Word	Noun	Adjective	Verb	Adverb
masses	Yes	No	No	No
laity	Yes	No	No	No

As nouns, laity is a hyponym of masses; that is, laity is a word with a more specific, narrower meaning than masses:

masses: the common people generally
laity: in Christianity, members of a religious community that do not have the priestly responsibilities of ordained clergy

Other hyponyms of masses include temporalty, audience, followers, following.

masses (noun)	laity (noun)
the common people generally	in Christianity, members of a religious community that do not have the priestly responsibilities of ordained clergy