journalism vs tabloid

journalism and tabloid both are nouns.

Word	Noun	Adjective	Verb	Adverb
journalism	Yes	No	No	No
tabloid	Yes	No	No	No

As nouns, tabloid is a hyponym of journalism; that is, tabloid is a word with a more specific, narrower meaning than journalism:

Other hyponyms of journalism include Fleet Street, photojournalism, tab, yellow journalism.

journalism (noun)	tabloid (noun)
the profession of reporting or photographing or editing news stories for one of the media	newspaper with half-size pages
newspapers and magazines collectively	sensationalist journalism