<p><strong>Noun</strong></p><ul><li>any of various modified forms of iron, artificially produced, having a carbon content less than that of pig iron and more than that of wrought iron, and having qualities of hardness, elasticity, and strength varying according to composition and heat treatment: generally categorized as having a high, medium, or low-carbon content.</li><li>a thing or things made of this metal.</li><li>a flat strip of this metal used for stiffening, especially in corsets; stay.</li><li>a bar of this metal that has one end formed to hold a bit for driving through rock.</li><li>steels, stocks or bonds of companies producing this metal.</li><li>a sword.</li><li>a rounded rod of ridged steel, fitted with a handle and used especially for sharpening knives.</li></ul><p><strong>Adjective</strong></p><ul><li>pertaining to or made of steel.</li><li>like steel in color, hardness, or strength.</li></ul><p><strong>Verb (used with object)</strong></p><ul><li>to fit with steel, as by pointing, edging, or overlaying.</li><li>to cause to resemble steel in some way.</li><li>to render insensible, inflexible, unyielding, determined, etc.: He steeled himself to perform the dangerous task.</li></ul>