Second Coming of Christ vs Second Advent

Second Coming of Christ and Second Advent both are nouns.

Word	Noun	Adjective	Verb	Adverb
Second Coming of Christ	Yes	No	No	No
Second Advent	Yes	No	No	No

As nouns, Second Coming of Christ and Second Advent are synonyms defined as:

Second Coming of Christ and Second Advent: (Christian theology) the reappearance of Jesus as judge for the Last Judgment

Other synonyms of Second Coming of Christ include Advent, Parousia, Second Coming.

Second Coming of Christ (noun)	Second Advent (noun)
(Christian theology) the reappearance of Jesus as judge for the Last Judgment	(Christian theology) the reappearance of Jesus as judge for the Last Judgment