rector vs parson

rector and parson both are nouns.

Word	Noun	Adjective	Verb	Adverb
rector	Yes	No	No	No
parson	Yes	No	No	No

As nouns, rector and parson are synonyms defined as:

Other synonyms of rector include curate, minister, minister of religion, pastor.

rector (noun)	parson (noun)
a person authorized to conduct religious worship	a person authorized to conduct religious worship