n. A cap fitting close to the head, and conforming to its shape.n. A cap like the calotte or skull-cap, usually of lawn, retained until the common introduction of the wig, especially as the head-dress of barristers.n. A skull-cap of leather or of stuff, apparently wadded, made of many thicknesses, or provided with a thickened rim or edge (see bourrelet), worn under the camail to prevent the links of the chain-mail from wounding the head when struck, or to prevent the heavy steel headpiece from pressing too heavily upon the head.n. Figuratively, the calling or rank of a barrister: as, a brother of the coif.n. In armor: A cap of chain-mail or of bezanted or scale armor, usually distinct from the camail, and worn over it as an additional defense, or to cover the top of the head when the camail reached only about to the ears. Also called coif of mail, cap of mail, mail coif, and coiffe-de-mailles.n. The camail itself.n. A skull-cap of steel, worn over the camail, or perhaps in some cases worn under the camail, or mail coif. Also called coif of plate, coiffe-de-fer, cervelière, and secret.n. A light cap of lace, worn by women at the present day.To cover or dress with or as with a coif.