news vs good word

news and good word both are nouns.

Word	Noun	Adjective	Verb	Adverb
news	Yes	No	No	No
good word	Yes	No	No	No

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

Other hyponyms of news include latest.

news (noun)	good word (noun)
the quality of being sufficiently interesting to be reported in news bulletins	good news
information about recent and important events	something that recommends (or expresses commendation of) a person or thing as worthy or desirable
information reported in a newspaper or news magazine
a program devoted to current events, often using interviews and commentary
informal information of any kind that is not previously known to someone