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Definition of moat

moat

/moʊt/
moat

Plural:moats
•
Adjective:moated
•
Past Simple:moated
•
Past Participle:moated
•
Present Participle:moating
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moat Lexical Profile

moat Game Scores & Validity

• noun

1

A deep, wide trench, usually filled with water, surrounding a castle, fortress, or town as a defense against attack.

Example

"The invading army struggled to find a way across the castle's steep, water-filled moat."


2

A distinct, sustainable competitive advantage that protects a company's market share and profitability from rival firms (often called an 'economic moat').

Example

"The tech giant's proprietary software ecosystem serves as a massive moat against new competitors entering the market."

Synonyms
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Antonyms
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• verb

1

To surround or protect a structure or settlement with a defensive trench.

Example

"The medieval lords moated their stone manor to defend against local uprisings."

Synonyms
View all synonyms for moat

Word Nuance & Usage

Moat is sometimes confused with its homophone 'mote', which refers to a tiny particle or speck of a substance.

• Rhymes for moat

Word Origin & Etymology

From Middle English 'mote' (mound, embankment, defensive ditch), borrowed from Old French 'motte' (mound, hillock), likely of pre-Roman, Gaulish origin.

Usage Trend

Historical frequency of usage in published text.

180019102020

Cite this Entry


Wordmom. (2026). Definition of Moat. In Wordmom Dictionary. Retrieved Nov 6, 2026, from https://wordmom.com/dictionary/moat
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