What is the meaning of Navy?

A country's entire maritime military force, including ships and personnel.

A governmental department in charge of a country's maritime military force.

Any fleet of maritime vessels, and especially the entire fleet of any particular nationality, including vessels that are commercial, military, or both.

A dark blue colour, usually called navy blue.

Having the dark blue colour of navy blue.

Belonging to the navy; typical of the navy.

navy (marine forces)

Source: wiktionary.org