bell vs navigation

bell and navigation both are nouns.

Word	Noun	Adjective	Verb	Adverb
bell	Yes	No	Yes	No
navigation	Yes	No	No	No

bell (noun)	navigation (noun)
a hollow device made of metal that makes a ringing sound when struck	the guidance of ships or airplanes from place to place
a push button at an outer door that gives a ringing or buzzing signal when pushed	the work of a sailor
the flared opening of a tubular device	ship traffic
a percussion instrument consisting of a set of tuned bells that are struck with a hammer; used as an orchestral instrument
the sound of a bell being struck
the shape of a bell
(nautical) each of the eight half-hour units of nautical time signaled by strokes of a ship's bell; eight bells signals 4:00, 8:00, or 12:00 o'clock, either a.m. or p.m.

bell (verb)	navigation (verb)
attach a bell to