functionary vs invalidator

Other hyponyms of functionary include apparatchik, appointee, bailiff, beadle, administrative official, bureaucrat, caretaker, censor, census taker, enumerator, church officer, city father, civil servant, commissar, political commissar, Comptroller General, Comptroller of the Currency, diplomat, diplomatist, elected official, equerry, fire marshall, fire warden, forest fire fighter, ranger, hearing examiner, hearing officer, hangover, holdover, incumbent, officeholder, Inquisitor, nullifier, voider, judge, jurist, justice, licenser, mace, macebearer, macer, mandarin, notary, notary public, noticer, officeholder, officer, agent, federal agent, provincial, postmaster general, proconsul, prosecuting attorney, prosecuting officer, prosecutor, public prosecutor, quaestor, recruiter, record-keeper, recorder, registrar, regulator, returning officer, sealer, searcher, teller, vote counter, town clerk, doorkeeper, usher, vizier, weigher.