Coat  —n. 1 outer garment with sleeves, usu. Extending below the hips; overcoat or jacket. 2 animal's fur or hair. 3 covering of paint etc. Laid on a surface at one time. —v. 1 (usu. Foll. By with, in) cover with a coat or layer. 2 (of paint etc.) Form a covering to. [french from germanic]