hectograph vs duplicator

hectograph and duplicator both are nouns.

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

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

hectograph: duplicator consisting of a gelatin plate from which ink can be taken to make a copy
duplicator: apparatus that makes copies of typed, written or drawn material

Other hypernyms of hectograph include copier, collotype, collotype printing, photogelatin process.

hectograph (noun)	duplicator (noun)
duplicator consisting of a gelatin plate from which ink can be taken to make a copy	apparatus that makes copies of typed, written or drawn material

hectograph (verb)	duplicator (verb)
copy on a duplicator