navigation vs raft

navigation and raft both are nouns.

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

navigation (noun)	raft (noun)
the guidance of ships or airplanes from place to place	a flat float (usually made of logs or planks) that can be used for transport or as a platform for swimmers
the work of a sailor	a foundation (usually on soft ground) consisting of an extended layer of reinforced concrete
ship traffic	(often followed by `of') a large number or amount or extent