Ketubim vs Ketuvim

Ketubim and Ketuvim both are nouns.

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

As nouns, Ketubim and Ketuvim are synonyms defined as:

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

Other synonyms of Ketubim include Hagiographa, Writings.

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