Writings vs Ketuvim

Writings and Ketuvim both are nouns.

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

As nouns, Writings and Ketuvim are synonyms defined as:

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

Other synonyms of Writings include Hagiographa, Ketubim.

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