dynamic balance vs astronautics

dynamic balance and astronautics both are nouns.

Word	Noun	Adjective	Verb	Adverb
dynamic balance	Yes	No	No	No
astronautics	Yes	No	No	No

dynamic balance (noun)	astronautics (noun)
(aeronautics) the state of equilibrium in which centrifugal forces due to a rotating mass (e.g., a propeller) do not produce force in the shaft and so vibration is reduced	the theory and practice of navigation through air or space