1
: a deep and wide trench around the rampart of a fortified place (such as a castle) that is usually filled with water
The moat can be crossed by a drawbridge.
2
: a channel resembling a moat (as about a seamount or for confinement of animals in a zoo)
A Bengal tiger stared at me from across the moat.

Illustration of moat

Illustration of moat
  • moat 1

Examples of moat in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Ongoing efforts are afoot to create moats or enact barriers to prevent their competitors from copying their distinct accomplishments. Lance Eliot, Forbes, 21 Mar. 2025 Beyond simply being remote, the continent has been isolated for millions of years by the Antarctic Circumpolar Current, which surrounds it like a moat around a castle. Ashley Balzer Vigil, Scientific American, 21 Mar. 2025 Holding a significant market share (over 36%) in the US dialysis market, the company has a moat. Gurufocus, Forbes, 6 Mar. 2025 In the plundering of the castle, the abatises were tossed into the moat. Irene Wright, Miami Herald, 5 Mar. 2025 See All Example Sentences for moat

Word History

Etymology

Middle English mote, from Anglo-French mote, motte mound, moat

First Known Use

15th century, in the meaning defined at sense 1

Time Traveler
The first known use of moat was in the 15th century

Browse Nearby Words

Cite this Entry

“Moat.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/moat. Accessed 31 Mar. 2025.

Kids Definition

: a deep wide trench around the walls of a castle or fortress that is usually filled with water

More from Merriam-Webster on moat

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