Agnus Dei vs Paschal Lamb

Agnus Dei and Paschal Lamb both are nouns.

Word	Noun	Adjective	Verb	Adverb
Agnus Dei	Yes	No	No	No
Paschal Lamb	Yes	No	No	No

As nouns, Agnus Dei and Paschal Lamb are synonyms defined as:

Agnus Dei (noun)	Paschal Lamb (noun)
figure of a lamb; emblematic of Christ	figure of a lamb; emblematic of Christ
a liturgical prayer beginning with these Latin words