stenograph vs typewriter

stenograph and typewriter both are nouns.

Word	Noun	Adjective	Verb	Adverb
stenograph	Yes	No	Yes	No
typewriter	Yes	No	No	No

As nouns, typewriter is a hypernym of stenograph; that is, typewriter is a word with a broader meaning than stenograph:

stenograph: a machine for typewriting shorthand characters
typewriter: hand-operated character printer for printing written messages one character at a time

stenograph (noun)	typewriter (noun)
a machine for typewriting shorthand characters	hand-operated character printer for printing written messages one character at a time
a shorthand character

stenograph (verb)	typewriter (verb)
write in shorthand