flatten

verb

flat·​ten ˈfla-tᵊn How to pronounce flatten (audio)
flattened; flattening ˈflat-niŋ How to pronounce flatten (audio)
ˈfla-tə-

transitive verb

: to make flat: such as
a
: to make level or smooth
b
: to knock down
also : to defeat decisively
c
: to make dull or uninspired
often used with out
d
: to make lusterless
flatten paint
e
: to stabilize especially at a lower level

intransitive verb

: to become flat or flatter: such as
a
: to become dull or spiritless
b
: to extend in or into a flat position or form
c
: to become uniform or stabilized often at a new lower level
usually used with out
flattener
ˈflat-nər How to pronounce flatten (audio)
ˈfla-tə-
noun

Examples of flatten in a Sentence

Dozens of houses were flattened by the tornado. The boxer was flattened in the seventh round. The team got flattened in the first round of the play-offs. Prices are expected to flatten after the holiday shopping season.
Recent Examples on the Web Homes were flattened, buildings damaged; the 10, which connected the city’s west side to downtown and was considered the busiest freeway in the country, remained closed for three months. Mary McNamara, Los Angeles Times, 11 Apr. 2024 The trail flattens out for the final section and becomes a gentle stroll. Maura Fox, San Diego Union-Tribune, 8 Apr. 2024 Meanwhile, overall electric vehicle sales in the United States have flattened out in recent months. Peter Valdes-Dapena, CNN, 7 Apr. 2024 In Gaza, over 33,000 Palestinians have been killed during Israel's offensive, which has flattened large swaths of the enclave and internally displaced most of Gaza's 2.3 million people, about half of whom are under 18 years old. Christopher Cann, USA TODAY, 5 Apr. 2024 On April 1, Israel launched its latest attack on Iran in the two countries’ ongoing shadow war, with an airstrike that flattened a section of Iran’s embassy complex in Damascus and reportedly killed at least 12 people. Dalia Dassa Kaye, Foreign Affairs, 4 Apr. 2024 Godzilla, Kong and their adversaries flatten sections of Rio, ripping buildings in half during their climactic brawl, as a monster that can shoot ice from its mouth coats the coastal setting, presumably freezing a bunch of citizens as well. Esther Zuckerman, New York Times, 1 Apr. 2024 On a neutral floor, perhaps the Wildcats’ first-quarter effort flattens out, and the upstart underdog creates a March memory. Blair Kerkhoff, Kansas City Star, 23 Mar. 2024 While these undergarments won't completely flatten the chest and could cause body dysphoria for some, different styles might help achieve multiple looks or offer options for youth who need to accommodate varying activities. Lauren Rowello, Parents, 15 Mar. 2024

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'flatten.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

First Known Use

1630, in the meaning defined at transitive sense

Time Traveler
The first known use of flatten was in 1630

Dictionary Entries Near flatten

Cite this Entry

“Flatten.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/flatten. Accessed 18 Apr. 2024.

Kids Definition

flatten

verb
flat·​ten ˈflat-ᵊn How to pronounce flatten (audio)
flattened; flattening ˈflat-niŋ How to pronounce flatten (audio)
-ᵊn-iŋ
: to make or become flat

More from Merriam-Webster on flatten

Last Updated: - Updated example sentences
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