(geology, manufacturing) A kind of uniformly light-coloured clay composed of fine particles, used in the production of paper and wallpaper; kaolin.

(geology) An Ypresian marine geological formation, known for its fossils, that crops out in southeast England.

(idiomatic) In someone apparently strong and without failings, a hidden weakness which could lead to downfall.

(mineralogy) Kaolin.

A quarry for clay

plural of clay pit

A common thrush of the Americas, Turdus grayi; the national bird of Costa Rica.

(informal, archaic) To drink.

A village and civil parish in East Lindsey district, Lincolnshire, England (OS grid ref TA2802).

(construction) A type of corrosion-resistant pipe made by heating clay until it vitrifies.