Definitionen
1.NounA country's entire maritime military force, including ships and personnel."People who get seasick easily shouldn't join the navy."
2.NounA governmental department in charge of a country's maritime military force.
3.NounAny fleet of maritime vessels, and especially the entire fleet of any particular nationality, including vessels that are commercial, military, or both.
4.NounA dark blue colour, usually called navy blue."navy: "
5.AdjectiveHaving the dark blue colour of navy blue.
6.AdjectiveBelonging to the navy; typical of the navy.