supplicant vs postulant

supplicant and postulant both are nouns.

Word	Noun	Adjective	Verb	Adverb
supplicant	Yes	Yes	No	No
postulant	Yes	No	No	No

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

supplicant: one praying humbly for something
postulant: one submitting a request or application especially one seeking admission into a religious order

Other hyponyms of supplicant include besieger, canvasser, solicitor.

supplicant (noun)	postulant (noun)
one praying humbly for something	one submitting a request or application especially one seeking admission into a religious order
someone who prays to God

supplicant (adjective)	postulant (adjective)
humbly entreating