mimeo vs duplicator

mimeo and duplicator both are nouns.

Word	Noun	Adjective	Verb	Adverb
mimeo	Yes	No	Yes	No
duplicator	Yes	No	No	No

As nouns, duplicator is a hypernym of mimeo; that is, duplicator is a word with a broader meaning than mimeo:

mimeo: a rotary duplicator that uses a stencil through which ink is pressed (trade mark Roneo)
duplicator: apparatus that makes copies of typed, written or drawn material

Other hypernyms of mimeo include copier.

mimeo (noun)	duplicator (noun)
a rotary duplicator that uses a stencil through which ink is pressed (trade mark Roneo)	apparatus that makes copies of typed, written or drawn material

mimeo (verb)	duplicator (verb)
print copies from (a prepared stencil) using a mimeograph