Coast Guard

  1. 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.

  2. (lowercase) any similar organization for aiding navigation, preventing smuggling, etc.

  1. (lowercase)Also called coastguardsman. a member of any such organization.

Origin of Coast Guard

First recorded in 1825–35

Words Nearby Coast Guard Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024

How to use Coast Guard in a sentence

British Dictionary definitions for coastguard


/ (ˈkəʊstˌɡɑːd) /

  1. a maritime force which aids shipping, saves lives at sea, prevents smuggling, etc

  2. Also called: coastguardsman a member of such a force

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012