voider vs functionary

voider and functionary both are nouns.

Word	Noun	Adjective	Verb	Adverb
voider	Yes	No	No	No
functionary	Yes	No	No	No

As nouns, functionary is a hypernym of voider; that is, functionary is a word with a broader meaning than voider:

Other hypernyms of voider include official.

voider (noun)	functionary (noun)
a hamper that holds dirty clothes to be washed or wet clothes to be dried	a worker who holds or is invested with an office
a piece of chain mail covering a place unprotected by armor plate
an official who can invalidate or nullify
a person who defecates