avionics vs astronautics

avionics and astronautics both are nouns.

Word	Noun	Adjective	Verb	Adverb
avionics	Yes	No	No	No
astronautics	Yes	No	No	No

As nouns, astronautics is a hypernym of avionics; that is, astronautics is a word with a broader meaning than avionics:

avionics: science and technology of electronic systems and devices for aeronautics and astronautics
astronautics: the theory and practice of navigation through air or space

Other hypernyms of avionics include aeronautics.

avionics (noun)	astronautics (noun)
science and technology of electronic systems and devices for aeronautics and astronautics	the theory and practice of navigation through air or space