presence vs existence

presence and existence both are nouns.

Word	Noun	Adjective	Verb	Adverb
presence	Yes	No	No	No
existence	Yes	No	No	No

As nouns, existence is a hypernym of presence; that is, existence is a word with a broader meaning than presence:

Other hypernyms of presence include being, beingness, face of the earth.

presence (noun)	existence (noun)
the act of being present	everything that exists anywhere
dignified manner or conduct	the state or fact of existing
the impression that something is present
the immediate proximity of someone or something
an invisible spiritual being felt to be nearby
the state of being present; current existence