bollock vs testicle

bollock and testicle both are nouns.

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

As nouns, bollock and testicle are synonyms defined as:

bollock and testicle: one of the two male reproductive glands that produce spermatozoa and secrete androgens

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

bollock (noun)	testicle (noun)
a pulley-block at the head of a topmast	one of the two male reproductive glands that produce spermatozoa and secrete androgens
one of the two male reproductive glands that produce spermatozoa and secrete androgens