news vs tidings

news and tidings both are nouns.

Word	Noun	Adjective	Verb	Adverb
news	Yes	No	No	No
tidings	Yes	No	No	No

As nouns, news and tidings are synonyms defined as:

Other synonyms of news include intelligence, word.

news (noun)	tidings (noun)
the quality of being sufficiently interesting to be reported in news bulletins	information about recent and important events
information about recent and important events
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