St. Luke vs Luke the Evangelist

St. Luke and Luke the Evangelist both are nouns.

Word	Noun	Adjective	Verb	Adverb
St. Luke	Yes	No	No	No
Luke the Evangelist	Yes	No	No	No

As nouns, St. Luke and Luke the Evangelist are synonyms defined as:

St. Luke and Luke the Evangelist: (New Testament) the Apostle closely associated with St. Paul and traditionally assumed to be the author of the third Gospel

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

St. Luke (noun)	Luke the Evangelist (noun)
(New Testament) the Apostle closely associated with St. Paul and traditionally assumed to be the author of the third Gospel	(New Testament) the Apostle closely associated with St. Paul and traditionally assumed to be the author of the third Gospel