steam

1 of 2

noun

1
: a vapor arising from a heated substance
2
a
: the invisible vapor into which water is converted when heated to the boiling point
b
: the mist formed by the condensation on cooling of water vapor
3
a
: water vapor kept under pressure so as to supply energy for heating, cooking, or mechanical work
also : the power so generated
b
: active force : power, momentum
got there under his own steam
sales began to pick up steam
also : normal force
at full steam
c
: pent-up emotional tension
needed to let off a little steam
4
b
: travel by or a trip in a steamer

steam

2 of 2

verb

steamed; steaming; steams

transitive verb

1
: to give out as fumes : exhale
2
: to apply steam to
especially : to expose to the action of steam (as for softening or cooking)

intransitive verb

1
: to rise or pass off as vapor
2
: to give off steam or vapor
3
a
: to move or travel by the agency of steam
b
: to move or proceed with energy or force
4
: to be angry : boil
steaming over the insult

Examples of steam in a Sentence

Noun Careful, the steam from the pot is hot. The boat runs on steam. He wiped the steam from the mirrors. He was afraid he would run out of steam before the end of the race. I was making good progress this morning, but now I'm starting to run out of steam. Verb a steaming bowl of soup She prefers to steam carrots rather than boil them. Their breath steamed the windows.
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Noun
Royals run out of steam The Royals have a perplexing offense. Jaylon Thompson, Kansas City Star, 31 May 2025 But as his career picked up steam, some of his biggest new fans turned out to be country superstars like Morgan Wallen, Jelly Roll (who just brought BigX out during his 2025 Stagecoach set), Post Malone and Luke Combs. Michael Saponara, Billboard, 30 May 2025
Verb
It can be used as a sauce for grain bowls featuring brown rice, spelt, oats, or barley; over legumes such as chickpeas, peas, and beans; and on roasted or steamed vegetables such as fennel, sweet potatoes, or squash. Alessandra Signorelli, Vogue, 31 May 2025 This traditional preparation, symbolic of samurai culture, features two seabreams steamed and served facing each other, often gracing weddings and celebratory occasions. Kaila Yu, Forbes.com, 31 May 2025 See All Example Sentences for steam

Word History

Etymology

Noun

Middle English stem, from Old English stēam; akin to Dutch stoom steam

First Known Use

Noun

before the 12th century, in the meaning defined at sense 1

Verb

15th century, in the meaning defined at transitive sense 1

Time Traveler
The first known use of steam was before the 12th century

Browse Nearby Words

Cite this Entry

“Steam.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/steam. Accessed 5 Jun. 2025.

Kids Definition

steam

1 of 2 noun
1
a
: the invisible vapor into which water is changed when heated to the boiling point
b
: the mist formed when water vapor cools
2
: water vapor kept under pressure so as to supply energy for heating, cooking, or mechanical work
also : the power so generated
3
a
: driving force : power
arrived under their own steam
b
: built-up tension
let off a little steam

steam

2 of 2 verb
1
: to rise or pass off as vapor
2
: to give off steam or vapor
3
: to move or travel by or as if by the power of steam
steamed up the river
4
: to be angry : boil
was steaming over the insult
5
: to expose to the action of steam (as for softening or cooking)
steamed clams

More from Merriam-Webster on steam

Last Updated: - Updated example sentences
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