dead reckoning vs navigation

dead reckoning and navigation both are nouns.

Word	Noun	Adjective	Verb	Adverb
dead reckoning	Yes	No	No	No
navigation	Yes	No	No	No

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

Other hypernyms of dead reckoning include pilotage, piloting.

dead reckoning (noun)	navigation (noun)
navigation without the aid of celestial observations	the guidance of ships or airplanes from place to place
an estimate based on little or no information	the work of a sailor
	ship traffic