rector vs pastor

rector and pastor both are nouns.

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

As nouns, rector and pastor are synonyms defined as:

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

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