bull fiddle vs bass fiddle

bull fiddle and bass fiddle both are nouns.

Word	Noun	Adjective	Verb	Adverb
bull fiddle	Yes	No	No	No
bass fiddle	Yes	No	No	No

As nouns, bull fiddle and bass fiddle are synonyms defined as:

bull fiddle and bass fiddle: largest and lowest member of the violin family

Other synonyms of bull fiddle include bass viol, contrabass, double bass, string bass.

bull fiddle (noun)	bass fiddle (noun)
largest and lowest member of the violin family	largest and lowest member of the violin family