- U.S. Military. a military service under the Department of Transportation, which in peacetime enforces maritime laws, saves lives and property at sea, and maintains aids to navigation, and which in wartime may be placed under the Navy Department to augment the navy.
- (lowercase) any similar organization for aiding navigation, preventing smuggling, etc.
- (lowercase) Also called coastguardsman. a member of any such organization.
Origin of Coast Guard
First recorded in 1825–35
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for coast guard
So when the coast-guard came alongside of them they surrendered.Historic Boyhoods
Rupert Sargent Holland
A turning in the path soon bid him from the sight of the coast-guard.
Face to face with the unknown, the coast-guard could now examine him at his leisure.
Suddenly aroused, the coast-guard was asked if he had seen or heard anything?
His voice is just the same as it was when I was the coast-guard, Pepé the Sleeper.