steel

1 steel /ˈstiːl/ noun
plural steels
1 steel
/ˈstiːl/
noun
plural steels
Britannica Dictionary definition of STEEL
1 
[noncount]
a  : a strong, hard metal made of iron and carbon — often used before another noun
— see also stainless steel
b  : the industry that makes steel
2 
a  [noncount] literary : things (such as weapons) that are made of steel
b  [singular] : the part of something that is made of steel
c  [count] : a device or tool that is made of steel
— see also pedal steel
3 
— used to describe something or someone that is very strong
— see also nerves of steel at nerve
2 steel /ˈstiːl/ verb
steels; steeled; steeling
2 steel
/ˈstiːl/
verb
steels; steeled; steeling
Britannica Dictionary definition of STEEL

steel yourself

: to make (yourself) ready for something difficult or unpleasant : to fill (yourself) with determination and courage