A deep, wide defensive ditch, normally filled with water, surrounding a fortified habitation.

(transitive) To surround with a moat.

plural of moat

Surrounded with a moat

present participle of moat

A surname.

plural of Moat

A surname.

(economics) The durability of the competitive advantage that a business has thanks to some protections like brand, technology, legal status.

Resembling or characteristic of a moat.