press conference vs news conference

press conference and news conference both are nouns.

Word	Noun	Adjective	Verb	Adverb
press conference	Yes	No	No	No
news conference	Yes	No	No	No

As nouns, press conference and news conference are synonyms defined as:

press conference and news conference: a conference at which press and tv reporters ask questions of a politician or other celebrity

press conference (noun)	news conference (noun)
a conference at which press and tv reporters ask questions of a politician or other celebrity	a conference at which press and tv reporters ask questions of a politician or other celebrity