nautical mile

noun

: any of various units of distance used for sea and air navigation based on the length of a minute of arc of a great circle of the earth and differing because the earth is not a perfect sphere: such as
a
: a British unit equal to 6080 feet (1853.2 meters)
b
: an international unit equal to exactly 1852 meters (6076.115 feet or 1.15 statute miles) used officially in the U.S. since July 1, 1954

Examples of nautical mile in a Sentence

Recent Examples on the Web
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From the Dallas Stadium, an unauthorized aircraft cannot come within three nautical miles or fly 3,000 feet ground-to-air. Marvin Hurst, CBS News, 26 June 2026 The vessel continued its voyage and is about 110 nautical miles (125 miles) off the eastern coast of Oman. Glenn Taylor, Footwear News, 26 June 2026 Upgrades to the aircraft include an extra fuel tank that extends the aircraft's range by approximately 1,000 nautical miles. Christopher Edwards, PEOPLE, 25 June 2026 On match days, all aircraft operations, including drones, are prohibited within a radius of 3 nautical miles and up to 3,000 feet above ground level around the stadiums unless specifically authorized by air traffic controllers. Reuters, NBC news, 23 June 2026 See All Example Sentences for nautical mile

Word History

First Known Use

1830, in the meaning defined above

Time Traveler
The first known use of nautical mile was in 1830

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Cite this Entry

“Nautical mile.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/nautical%20mile. Accessed 30 Jun. 2026.

Kids Definition

nautical mile

noun
: any of various units of distance used for sea and air navigation equal to about 6076 feet (1852 meters)

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