1steel 
/ˈsti:l/ noun
plural steels /ˈsti:l/ noun 1 [noncount] a : a strong, hard metal made of iron and carbon
▪ The beams are made of steel. — often used before another noun ▪ steel bars ▪ a steel mill [=a mill/factory where steel is made] — see also stainless steel
b : the industry that makes steel
▪ Steel is an important industry in this area. ▪ She came from a steel town [=a town where steel is made] in Pennsylvania. ▪ Big Steel [=the steel industry] is lobbying Congress for new legislation. 2 a [noncount] literary : things (such as weapons) that are made of steel
▪ The invaders were driven back by steel. ▪ the clash of steel
b [singular] : the part of something that is made of steel
▪ the steel of a knife
c [count] : a device or tool that is made of steel
▪ a sharpening steel [=a steel rod that has a rough surface and is used for sharpening knives] — see also pedal steel 3 — used to describe something or someone that is very strong ▪ He had a grip of steel. = He had a grip like steel. [=he had a very powerful grip] ▪ a man of steel [=a very strong man] — see also nerves of steel at nerve
▪ The beams are made of steel. — often used before another noun ▪ steel bars ▪ a steel mill [=a mill/factory where steel is made] — see also stainless steel
b : the industry that makes steel
▪ Steel is an important industry in this area. ▪ She came from a steel town [=a town where steel is made] in Pennsylvania. ▪ Big Steel [=the steel industry] is lobbying Congress for new legislation.
▪ The invaders were driven back by steel. ▪ the clash of steel
b [singular] : the part of something that is made of steel
▪ the steel of a knife
c [count] : a device or tool that is made of steel
▪ a sharpening steel [=a steel rod that has a rough surface and is used for sharpening knives] — see also pedal steel
