Saint Thomas vs St. Thomas

Saint Thomas and St. Thomas both are nouns.

Word	Noun	Adjective	Verb	Adverb
Saint Thomas	Yes	No	No	No
St. Thomas	Yes	No	No	No

As nouns, Saint Thomas and St. Thomas are synonyms defined as:

Saint Thomas and St. Thomas: (Roman Catholic Church) Italian theologian and Doctor of the Church who is remembered for his attempt to reconcile faith and reason in a comprehensive theology; presented philosophical proofs of the existence of God (1225-1274)

Other synonyms of Saint Thomas include Aquinas, Saint Thomas Aquinas, St. Thomas Aquinas, Thomas Aquinas.

As nouns, Saint Thomas and St. Thomas are synonyms defined as:

Saint Thomas and St. Thomas: the Apostle who would not believe the resurrection of Jesus until he saw Jesus with his own eyes

Other synonyms of Saint Thomas include doubting Thomas, Thomas, Thomas the Apostle, Thomas the doubting Apostle.

Saint Thomas (noun)	St. Thomas (noun)
(Roman Catholic Church) Italian theologian and Doctor of the Church who is remembered for his attempt to reconcile faith and reason in a comprehensive theology; presented philosophical proofs of the existence of God (1225-1274)	(Roman Catholic Church) Italian theologian and Doctor of the Church who is remembered for his attempt to reconcile faith and reason in a comprehensive theology; presented philosophical proofs of the existence of God (1225-1274)
the Apostle who would not believe the resurrection of Jesus until he saw Jesus with his own eyes	the Apostle who would not believe the resurrection of Jesus until he saw Jesus with his own eyes