existential quantifier vs existential operator

existential quantifier and existential operator both are nouns.

Word	Noun	Adjective	Verb	Adverb
existential quantifier	Yes	No	No	No
existential operator	Yes	No	No	No

As nouns, existential quantifier and existential operator are synonyms defined as:

existential quantifier and existential operator: a logical quantifier of a proposition that asserts the existence of at least one thing for which the proposition is true

existential quantifier (noun)	existential operator (noun)
a logical quantifier of a proposition that asserts the existence of at least one thing for which the proposition is true	a logical quantifier of a proposition that asserts the existence of at least one thing for which the proposition is true