attic vs bonce

attic and bonce both are nouns.

Word	Noun	Adjective	Verb	Adverb
attic	Yes	No	No	No
bonce	Yes	No	No	No

As nouns, attic and bonce are synonyms defined as:

Other synonyms of attic include bean, dome, noggin, noodle.

attic (noun)	bonce (noun)
floor consisting of open space at the top of a house just below roof; often used for storage	informal terms for a human head
(architecture) a low wall at the top of the entablature; hides the roof
informal terms for a human head