cobblers vs testicle

cobblers and testicle both are nouns.

Word	Noun	Adjective	Verb	Adverb
cobblers	Yes	No	No	No
testicle	Yes	No	No	No

As nouns, testicle is a hypernym of cobblers; that is, testicle is a word with a broader meaning than cobblers:

cobblers: a man's testicles
testicle: one of the two male reproductive glands that produce spermatozoa and secrete androgens

Other hypernyms of cobblers include ball, ballock, bollock, egg, nut, orchis, testis.

cobblers (noun)	testicle (noun)
a man's testicles	one of the two male reproductive glands that produce spermatozoa and secrete androgens
nonsense