emcee vs quizmaster

emcee and quizmaster both are nouns.

Word	Noun	Adjective	Verb	Adverb
emcee	Yes	No	Yes	No
quizmaster	Yes	No	No	No

As nouns, quizmaster is a hyponym of emcee; that is, quizmaster is a word with a more specific, narrower meaning than emcee:

emcee: a person who acts as host at formal occasions (makes an introductory speech and introduces other speakers)
quizmaster: the host or chairman of a radio or tv quiz show or panel game

Other hyponyms of emcee include compere, Lord of Misrule, question master, ringmaster, symposiarch, toastmaster.

emcee (noun)	quizmaster (noun)
a person who acts as host at formal occasions (makes an introductory speech and introduces other speakers)	the host or chairman of a radio or tv quiz show or panel game

emcee (verb)	quizmaster (verb)
act as a master of ceremonies