direction vs pilotage

direction and pilotage both are nouns.

Word	Noun	Adjective	Verb	Adverb
direction	Yes	No	No	No
pilotage	Yes	No	No	No

As nouns, pilotage is a hyponym of direction; that is, pilotage is a word with a more specific, narrower meaning than direction:

direction (noun)	pilotage (noun)
the act of managing something	the guidance of ships or airplanes from place to place
the act of setting and holding a course	the occupation of a pilot
a general course along which something has a tendency to develop
the concentration of attention or energy on something
something that provides direction or advice as to a decision or course of action
a formal statement of a command or injunction to do something
a message describing how something is to be done
a line leading to a place or point
the spatial relation between something and the course along which it points or moves