word vs tidings

word and tidings both are nouns.

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

As nouns, word and tidings are synonyms defined as:

Other synonyms of word include intelligence, news.

word (noun)	tidings (noun)
a unit of language that native speakers can identify	information about recent and important events
a promise
information about recent and important events
a brief statement
an exchange of views on some topic
a secret word or phrase known only to a restricted group
a verbal command for action
a string of bits stored in computer memory

word (verb)	tidings (verb)
put into words or an expression