press agency vs press association

press agency and press association both are nouns.

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

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

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

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

press 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