Ben Sira vs Wisdom of Jesus the Son of Sirach

Ben Sira and Wisdom of Jesus the Son of Sirach both are nouns.

Word	Noun	Adjective	Verb	Adverb
Ben Sira	Yes	No	No	No
Wisdom of Jesus the Son of Sirach	Yes	No	No	No

As nouns, Ben Sira and Wisdom of Jesus the Son of Sirach are synonyms defined as:

Ben Sira and Wisdom of Jesus the Son of Sirach: an Apocryphal book mainly of maxims (resembling Proverbs in that respect)

Other synonyms of Ben Sira include Ecclesiasticus, Sirach.

Ben Sira (noun)	Wisdom of Jesus the Son of Sirach (noun)
an Apocryphal book mainly of maxims (resembling Proverbs in that respect)	an Apocryphal book mainly of maxims (resembling Proverbs in that respect)