Definition of navigation noun from the Oxford Advanced Learner's Dictionary
navigation
noun
ˌnævɪˈɡeɪʃn ˌnævɪˈɡeɪʃn
[uncountable]
1the skill or the process of planning a route for a ship or other vehicle and taking it therenavigation systemsan expert in navigation2the movement of ships or aircraftthe right of navigation through international watersnavigational