news agency vs wire service

news agency and wire service both are nouns.

Word	Noun	Adjective	Verb	Adverb
news agency	Yes	No	No	No
wire service	Yes	No	No	No

As nouns, news agency and wire service are synonyms defined as:

news agency and wire service: an agency to collects news reports for newspapers and distributes it electronically

Other synonyms of news agency include news organisation, news organization, press agency, press association.

news agency (noun)	wire service (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