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Coast guard

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Coast Guard

–noun
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.
3. (lowercase) Also called coastguardsman. a member of any such organization.

Origin:
1825–35
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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coast guard also Coast Guard  
n.   Abbr. CG
  1. The branch of a nation's armed forces that is responsible for coastal defense, protection of life and property at sea, and enforcement of customs, immigration, and navigation laws.

  2. A member of a coast guard.

The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Encyclopedia

coast guard

a force, usually naval, that enforces a nation's maritime laws and assists vessels wrecked or in distress on or near its coasts. Such forces originated during the early 19th century as a restraint on smuggling.

Learn more about coast guard with a free trial on Britannica.com.

Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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