Your browser does not seem to support JavaScript. As a result, your viewing experience will be diminished, and you have been placed in read-only mode.
Please download a browser that supports JavaScript, or enable it if it's disabled (i.e. NoScript).
abbreviation for the United States Navy
The United States Navy (USN) is the maritime service branch of the United States Armed Forces and one of the eight uniformed services of the United States. The U.S. Navy emerged from World War II as the most powerful navy in the world.
Share your knowledge with the community
Browse our collection of 300,000+ community-written definitions
