Quality of being navigable.

plural of navigability

So as to permit navigation.

plural of navigation

Former name of Samoa (“island group”).

Used other than figuratively or idiomatically: see navigable, waters.

(nautical) Synonym of nautical chart (“maritime map showing characteristics which are relevant for seafarers”)

plural of navigational chart

The determination of the three-dimensional position and velocity of a spacecraft (relative to a frame of reference)

the science and technology of determining the position of an aircraft with respect to the surface of the earth and accurately maintaining a desired course