1
: commercial iron that contains carbon in any amount up to about 1.7 percent as an essential alloying constituent, is malleable when under suitable conditions, and is distinguished from cast iron by its malleability and lower carbon content
2
: an instrument or implement of or characteristically of steel: such as
a
: a thrusting or cutting weapon
b
: an instrument (such as a fluted round rod with a handle) for sharpening knives
c
: a piece of steel for striking sparks from flint
3
: a quality (such as hardness of mind or spirit) that suggests steel
nerves of steel
4
a
: the steel manufacturing industry
b
steels plural
: shares of stock in steel companies
steeled; steeling; steels
1
: to overlay, point, or edge with steel
2
a
: to cause to resemble steel (as in looks or hardness)
b
: to fill with resolution or determination
steeled herself to face the crisis
1
: made of steel
2
: of or relating to the production of steel
3
: resembling steel
Examples of steel in a Sentence
Noun
The beams are made of steel.
Steel is an important industry in this area.
The invaders were driven back by steel.
the steel of a knife
Verb
hoped that his inspirational talk would steel the youths in the pursuit of their dreams
years of running a farm had steeled the hard-bitten woman
Recent Examples on the Web
Michelle Mastro, Architectural Digest, 23 Oct. 2025
The International Energy Agency (IEA) and Intergovernmental Panel on Climate Change (IPCC) have both identified CCS as an essential tool to reduce emissions from carbon-intensive sectors like power, cement, and steel.
—Neetika Walter, Interesting Engineering, 23 Oct. 2025
Andrew Callahan, Boston Herald, 16 Sep. 2025
His sacrifice has steeled our resolve, redoubled our commitment and only increased our determination to save America at this critical turning point.
—Dan Gooding, MSNBC Newsweek, 15 Sep. 2025
Cnn.com Wire Service, Mercury News, 19 Aug. 2025
Around the country, mining operations have cropped up in an ex-steel mill in Calvert City, Kentucky; an ex-Gateway Computer industrial campus in South Dakota; a power plant in Hardin, Montana; a former airplane hangar in Big Spring, Texas; and old fruit warehouses in Eastern Washington State.
—Sophie Haigney, Curbed, 13 July 2021
See All Example Sentences for steel
Examples are automatically compiled from online sources to
show current usage.
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Opinions expressed in the examples do not represent those of Merriam-Webster or its editors.
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Noun
Or look to heavy-duty hooks Made from heavy-duty steel, these hooks can hold up to 265 pounds.
—Michelle Mastro, Architectural Digest, 23 Oct. 2025
The International Energy Agency (IEA) and Intergovernmental Panel on Climate Change (IPCC) have both identified CCS as an essential tool to reduce emissions from carbon-intensive sectors like power, cement, and steel.
—Neetika Walter, Interesting Engineering, 23 Oct. 2025
Verb
Few coaches know that better than Mike Vrabel, who steeled his team ahead of what many expected to be a toss-up game.
—Andrew Callahan, Boston Herald, 16 Sep. 2025
His sacrifice has steeled our resolve, redoubled our commitment and only increased our determination to save America at this critical turning point.
—Dan Gooding, MSNBC Newsweek, 15 Sep. 2025
Adjective
The non-steel and non-aluminum components of the products face other applicable levies.
—Cnn.com Wire Service, Mercury News, 19 Aug. 2025
Around the country, mining operations have cropped up in an ex-steel mill in Calvert City, Kentucky; an ex-Gateway Computer industrial campus in South Dakota; a power plant in Hardin, Montana; a former airplane hangar in Big Spring, Texas; and old fruit warehouses in Eastern Washington State.
—Sophie Haigney, Curbed, 13 July 2021
See All Example Sentences for steel
Cite this Entry
“Steel.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/steel. Accessed 31 Oct. 2025.
Copy CitationKids Definition
steel
1 of 3 noun1
: commercial iron that contains carbon in any amount up to about 1.7 percent as a necessary part
2
: an article (as a sword) made of steel
3
: a hard cold quality
answered with steel in her voice
steel
2 of 3 verb
: to fill with courage or determination
steel
3 of 3 adjective1
: made of or like steel
2
: of or relating to the production of steel
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