Trinity vs Holy Trinity

Trinity and Holy Trinity both are nouns.

Word	Noun	Adjective	Verb	Adverb
Trinity	Yes	No	No	No
Holy Trinity	Yes	No	No	No

As nouns, Trinity and Holy Trinity are synonyms defined as:

Trinity and Holy Trinity: the union of the Father and Son and Holy Ghost in one Godhead

Other synonyms of Trinity include Blessed Trinity, Sacred Trinity.

Trinity (noun)	Holy Trinity (noun)
the union of the Father and Son and Holy Ghost in one Godhead	the union of the Father and Son and Holy Ghost in one Godhead