Benny vs Jack Benny

Benny and Jack Benny both are nouns.

Word	Noun	Adjective	Verb	Adverb
Benny	Yes	No	No	No
Jack Benny	Yes	No	No	No

As nouns, Benny and Jack Benny are synonyms defined as:

Benny and Jack Benny: United States comedian known for his timeing and delivery and self-effacing humor (1894-1974)

Other synonyms of Benny include Benjamin Kubelsky.

Benny (noun)	Jack Benny (noun)
United States comedian known for his timeing and delivery and self-effacing humor (1894-1974)	United States comedian known for his timeing and delivery and self-effacing humor (1894-1974)