photojournalism vs news media

photojournalism and news media both are nouns.

Word	Noun	Adjective	Verb	Adverb
photojournalism	Yes	No	No	No
news media	Yes	No	No	No

As nouns, news media is a hypernym of photojournalism; that is, news media is a word with a broader meaning than photojournalism:

photojournalism: journalism that presents a story primarily through the use of pictures
news media: newspapers and magazines collectively

Other hypernyms of photojournalism include journalism.

photojournalism (noun)	news media (noun)
journalism that presents a story primarily through the use of pictures	newspapers and magazines collectively