news agency vs press association

news agency and press association both are nouns.

Word	Noun	Adjective	Verb	Adverb
news agency	Yes	No	No	No
press association	Yes	No	No	No

As nouns, news agency and press association are synonyms defined as:

news agency and press association: an agency to collects news reports for newspapers and distributes it electronically

Other synonyms of news agency include news organisation, news organization, press agency, wire service.

news agency (noun)	press association (noun)
an agency to collects news reports for newspapers and distributes it electronically	an agency to collects news reports for newspapers and distributes it electronically