story vs newsletter

story and newsletter both are nouns.

Word	Noun	Adjective	Verb	Adverb
story	Yes	No	No	No
newsletter	Yes	No	No	No

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

story: a short account of the news
newsletter: report or open letter giving informal or confidential news of interest to a special group

Other hyponyms of story include newssheet, bulletin, communique, despatch, dispatch, urban legend, exclusive, scoop.

story (noun)	newsletter (noun)
a structure consisting of a room or set of rooms at a single position along a vertical scale	report or open letter giving informal or confidential news of interest to a special group
a piece of fiction that narrates a chain of related events
a short account of the news
a trivial lie
a message that tells the particulars of an act or occurrence or course of events; presented in writing or drama or cinema or as a radio or television program
a record or narrative description of past events