Meaning of NAVIGATION in English

nav ‧ i ‧ ga ‧ tion /ˌnævəˈɡeɪʃ ə n, ˌnævɪˈɡeɪʃ ə n/ BrE AmE noun [uncountable]

1 . the science or job of planning which way you need to go when you are travelling from one place to another:

compasses and other instruments of navigation

2 . when someone sails a ship along a river or other area of water:

Navigation becomes more difficult further up the river.

3 . when you ↑ click on words, pictures etc in order to move between documents that are connected on the Internet

—navigational adjective [only before noun]

Longman Dictionary of Contemporary English.      Longman - Словарь современного английского языка.