plural navies
1
: the part of a country's military forces that fights at sea using ships, submarines, airplanes, etc.
A similar submarine is used by several foreign navies.
a career in the navy
—usually capitalized when a specific navy is being referred tothe Russian Navy
He plans to join the Navy.
2
: navy blue
The shirt comes in black, white, and navy.
a navy sweater
Cite this Entry
“Navy.” Merriam-Webster.com Simple Definition, Merriam-Webster, https://www.merriam-webster.com/simple/navy. Accessed 22 Jun. 2026.
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