Ketuvim vs Writings

Ketuvim and Writings both are nouns.

Word	Noun	Adjective	Verb	Adverb
Ketuvim	Yes	No	No	No
Writings	Yes	No	No	No

As nouns, Ketuvim and Writings are synonyms defined as:

Ketuvim and Writings: the third of three divisions of the Hebrew Scriptures

Other synonyms of Ketuvim include Hagiographa, Ketubim.

Ketuvim (noun)	Writings (noun)
the third of three divisions of the Hebrew Scriptures	the third of three divisions of the Hebrew Scriptures