Navy是什么意思？

Would you like to see those pants in brown and navy blue?

You can see that we're here to stay, said Vladimir Cheberdak, 57, chief of the Bellingshausen Station, as he sipped tea under a portrait of Fabian Gottlieb von Bellingshausen, a high-ranking officer in the Imperial Russian Navy who explored the Antarctic coast in 1820.

Brazil opened a research station in 1984, but it was largely destroyed by a fire that killed two members of the navy in 2012, the same year that a diesel-laden Brazilian barge sank near the base.

After reading a book on how to address for success, he had purchased an expensive dark navy suit and golden tie.

Why did Larry purchase an expensive navy suit and golden tie