mothball vs camphor ball

mothball and camphor ball both are nouns.

Word	Noun	Adjective	Verb	Adverb
mothball	Yes	No	Yes	No
camphor ball	Yes	No	No	No

As nouns, mothball and camphor ball are synonyms defined as:

mothball and camphor ball: a small sphere of camphor or naphthalene used to keep moths away from stored clothing

mothball (noun)	camphor ball (noun)
a small sphere of camphor or naphthalene used to keep moths away from stored clothing	a small sphere of camphor or naphthalene used to keep moths away from stored clothing

mothball (verb)	camphor ball (verb)
put into long-term storage