Andrew vs Saint Andrew the Apostle

Andrew and Saint Andrew the Apostle both are nouns.

Word	Noun	Adjective	Verb	Adverb
Andrew	Yes	No	No	No
Saint Andrew the Apostle	Yes	No	No	No

As nouns, Andrew and Saint Andrew the Apostle are synonyms defined as:

Andrew and Saint Andrew the Apostle: (New Testament) disciple of Jesus; brother of Peter; patron saint of Scotland

Other synonyms of Andrew include Saint Andrew, St. Andrew.

Andrew (noun)	Saint Andrew the Apostle (noun)
(New Testament) disciple of Jesus; brother of Peter; patron saint of Scotland	(New Testament) disciple of Jesus; brother of Peter; patron saint of Scotland