inertial navigation vs steering

inertial navigation and steering both are nouns.

Word	Noun	Adjective	Verb	Adverb
inertial navigation	Yes	No	No	No
steering	Yes	No	No	No

As nouns, steering is a hypernym of inertial navigation; that is, steering is a word with a broader meaning than inertial navigation:

inertial navigation: a method of controlling the flight of a missile by devices that respond to inertial forces
steering: the act of setting and holding a course

Other hypernyms of inertial navigation include direction, guidance.

inertial navigation (noun)	steering (noun)
a method of controlling the flight of a missile by devices that respond to inertial forces	the act of setting and holding a course
	the act of guiding or showing the way
	the act of steering a ship