monastic vs monk

monastic and monk both are nouns.

Word	Noun	Adjective	Verb	Adverb
monastic	Yes	Yes	No	No
monk	Yes	No	No	No

As nouns, monastic and monk are synonyms defined as:

monastic and monk: a male religious living in a cloister and devoting himself to contemplation and prayer and work

monastic (noun)	monk (noun)
a male religious living in a cloister and devoting himself to contemplation and prayer and work	a male religious living in a cloister and devoting himself to contemplation and prayer and work

monastic (adjective)	monk (adjective)
of communal life sequestered from the world under religious vows