peak

1 of 5

noun

1
: a pointed or projecting part of a garment
especially : the visor of a cap or hat
The cap's peak shades his eyes.
2
: promontory
a steep rocky peak
3
: a sharp or pointed end
the peak of a roof
4
a(1)
: the top of a hill or mountain ending in a point
the fog hung … heavily on the peak of the hillH. D. Skidmore
(2)
: a prominent mountain usually having a well-defined summit
b
: something resembling a mountain peak
Beat the cream until it forms stiff peaks.
5
a
: the upper aftermost corner of a fore-and-aft sail
b
: the narrow part of a ship's bow or stern or the part of the hold in it
6
a
: the highest level or greatest degree
a singer at the peak of her popularity
b
: a high point in a course of development especially as represented on a graph
The graph shows that murders in the city reached a peak two years ago.
7

peak

2 of 5

verb (1)

peaked; peaking; peaks

intransitive verb

: to reach a maximum (as of capacity, value, or activity)
often used with out

transitive verb

: to cause to come to a peak, point, or maximum

peak

3 of 5

adjective

1
: being at or reaching the maximum
peak levels
peak output
peak performance
operating at peak strength/efficiency
Wang thinks that groundwater was jolted free by the quake. The water then trickled down into the streams and reached a peak outpour about 30 days later.Thomas Sumner
Air-conditioning is also one of the main contributors to peak electric power demand …Shane Cashman
also : of, relating to, or being a period of maximum intensity or activity
And because women, as a whole, leave later for work than men, they tend to travel right smack-dab in the peak hours of congestion (and even more so in the afternoon peak hours, which is partially why those tend to be worse.) Tom Vanderbilt
2
: being at the height of popularity, use, or attention
used before the name of a product, person, cultural trend, etc.
Just when you think we've surely reached peak bourbon, someone else ups the ante. No longer is it enough to have the oldest, the rarest, or the most expensive whiskey, or even to pick a personal barrel from a distillery.Dana McMahan
All this is to say, we are at peak Wes Anderson—or rather, we have been for a very, very long time. We have to ask: why is this style so easy to send up? And why is it so hard to dislodge?Louis Wise

peak

4 of 5

verb (2)

peaked; peaking; peaks

intransitive verb

1
: to grow thin or sickly
2
: to dwindle away

peak

5 of 5

verb (3)

peaked; peaking; peaks

transitive verb

1
nautical : to set (a gaff, a yard, etc.) nearer the perpendicular
2
rowing : to hold (oars) with blades well raised

Did you know?

Peek vs. Peak vs. Pique

Peek, peak, and pique: they sound the same but mean very different things.

The first one we learn is peek: it has to do with looking, especially furtively or quickly or through a small space, as in "open the box and peek inside." It's both a noun and a verb; when you peek, you take a peek. Our advice for remembering this one is to keep in mind that you peek in order to see.

Peak is the verb you use to talk about reaching a maximum, or coming to a highest point, literally or figuratively, as in "The meteor shower will last for several days but will peak on Sunday." Its noun counterpart, which refers to various pointed or projecting parts, is more common: something that peaks reaches a peak. Just as every mountain has a peak, thinking of the peak—the highest point—is the way to remember that peak is the choice for reaching the highest levels. Associating the "a" in peak with the "a" in maximum or with a capital "A" (the most mountain-like of letters) can be helpful.

Pique is the oddball of this trio. We know the "ique" spelling from the likes of technique, antique, and unique, but pique nonetheless looks a little exotic. It comes from a French word meaning literally "to prick," but its earliest English use was as a noun. The noun is still used: a pique is a transient feeling of wounded vanity—a kind of resentment. As a verb, pique was (and still is, especially in British English) used to mean "to arouse anger or resentment in," as in "Their rudeness piqued me." Now, however, it's most often our interest or curiosity that gets piqued—that is to say, our interest or curiosity is aroused, as in "The large key hanging next on the wall piqued my curiosity."

Pique has another meaning too, though it's less common than any of those already mentioned. Pique sometimes is used to mean "to take pride in (oneself)," as in "She piques herself on her editing skills."

Master this trio, and you can pique yourself on your word skills.

Choose the Right Synonym for peak

summit, peak, pinnacle, climax, apex, acme, culmination mean the highest point attained or attainable.

summit implies the topmost level attainable.

at the summit of the Victorian social scene

peak suggests the highest among other high points.

an artist working at the peak of her powers

pinnacle suggests a dizzying and often insecure height.

the pinnacle of worldly success

climax implies the highest point in an ascending series.

the war was the climax to a series of hostile actions

apex implies the point where all ascending lines converge.

the apex of Dutch culture

acme implies a level of quality representing the perfection of a thing.

a statue that was once deemed the acme of beauty

culmination suggests the outcome of a growth or development representing an attained objective.

the culmination of years of effort

Examples of peak in a Sentence

Noun a line of rocky peaks the peak of the roof The recipe says to beat the cream until it forms soft peaks. At her peak she was writing a new novel every year. Violence reached a peak just before the election. The graph shows that murders in the city declined from a peak of 173 in 2004. Adjective The factory has been running at peak capacity for the past year. the peak season for fishing
Recent Examples on the Web
Noun
As for Xu, Forbes says his personal net worth has likewise ballooned over the past few years, from $1.8 billion in 2018 to a peak of $19.5 billion in 2021. James McClain, Robb Report, 16 Apr. 2024 While the meteor shower usually only produces 10-20 meteors per hour, some years have been particularly active and treated stargazers to up to 100 meteors per hour at its peak. Shaun Goodwin, Idaho Statesman, 16 Apr. 2024 Adding to its woes, its rapid expansion in different parts of the world during the peak of its success made matters worse. Prarthana Prakash, Fortune Europe, 16 Apr. 2024 The former president's 57% stake in his media business was valued at $1.8 billion on Tuesday afternoon, a sharp decline from its $6.3 billion valuation at the stock's peak. Aimee Picchi, CBS News, 16 Apr. 2024 Picture show Utah's Great Salt Lake, the largest saline lake in the Western Hemisphere, reached peak water levels in the 1980s. Suzanne Nuyen, NPR, 15 Apr. 2024 These cancellations cause the intensity peaks of the lateral modes to weaken and spread. Susumu Noda, IEEE Spectrum, 14 Apr. 2024 Monday morning is forecast to be sunny, followed by temperature peaks in the high-70s to lower-80s, according to the National Weather Service in Miami. Omar Rodríguez Ortiz, Miami Herald, 5 Apr. 2024 Go at peak traffic time and step back behind their landscape plants. Neil Sperry, Fort Worth Star-Telegram, 5 Apr. 2024
Verb
The Kansas City area was expected to peak at 62 degrees around 9 a.m. and fall into the low to mid-50s by the afternoon. Robert A. Cronkleton, Kansas City Star, 18 Apr. 2024 Boise is set for a double astronomical event next week when the Pink Moon arrives just a day after the Lyrid meteor shower peaks above the United States. Shaun Goodwin, Idaho Statesman, 17 Apr. 2024 After reaching peaking at $79.38 per share on March 26, the stock — which trades under the ticker DJT, the initials of former President Donald Trump — has plunged by almost 70%. Aimee Picchi, CBS News, 16 Apr. 2024 This year the shower will peak in the late evening of April 21 through dawn on April 22. Gabe Hauari, USA TODAY, 12 Apr. 2024 The temperatures in all those cities were expected to peak in the 50s on Saturday. Rick Hurd, The Mercury News, 12 Apr. 2024 Not only did the Fed avoid a downturn, but inflation came down significantly, too: After peaking at an annual rate of 7.1 percent in mid-2022, the Fed’s preferred inflation gauge clocked in at 2.5 percent in February. Rachel Siegel, Washington Post, 11 Apr. 2024 For instance, last year, the viewership for the WNBA championship game peaked at 1.3 million. Raisa Habersham, Miami Herald, 11 Apr. 2024 The comptroller’s economic report found that 100,000 Maryland women have dropped out of the workforce between 2019 and 2021, peaking among those ages 25 to 34 — a rate twice as high as the national average. Emily Guskin, Washington Post, 6 Apr. 2024
Adjective
These times coincide with peak nectar availability. The Arizona Republic, 10 Apr. 2024 In general, the on-sale and the couple of weeks following are the peak moment for demand, and prices can reflect that until the market adjusts. Howard Cohen, Miami Herald, 10 Apr. 2024 To make things more challenging, the eclipse coincides with peak Spring Break travel days. Marisa Garcia, Forbes, 27 Mar. 2024 Chefs are given a head count at the beginning of the evening, at peak time and near the end of dinner. Nathan Diller, USA TODAY, 21 Mar. 2024 Another drop in sentiment followed during peak inflation prices. Abha Bhattarai, Washington Post, 16 Mar. 2024 Here’s how to keep your precious stash at peak freshness. Ali Francis, Bon Appétit, 12 Mar. 2024 Energy Vault’s battery installation will allow for nearly 69 MW’s worth of peak demand to be supplied to the grid before a single cubic foot of natural gas needs to be burned. Erik Kobayashi-Solomon, Forbes, 29 Feb. 2024 The service was forced to cancel thousands of appointments during a period of peak winter demand. Harold Maass, The Week Us, theweek, 4 Jan. 2024

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

Word History

Etymology

Noun, Verb (1), and Adjective

perhaps alteration of pike

Verb (2)

origin unknown

Verb (3)

from apeak held vertically

First Known Use

Noun

15th century, in the meaning defined at sense 3

Verb (1)

1887, in the meaning defined at transitive sense

Adjective

1903, in the meaning defined at sense 1

Verb (2)

1605, in the meaning defined at sense 1

Verb (3)

1626, in the meaning defined at sense 1

Time Traveler
The first known use of peak was in the 15th century

Dictionary Entries Near peak

Cite this Entry

“Peak.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/peak. Accessed 24 Apr. 2024.

Kids Definition

peak

1 of 2 noun
1
: a part of a piece of clothing that is pointed or sticks out
especially : the front part of a cap or hat
2
a
: the top of a hill or mountain
b
: a mountain all by itself
3
: the highest point of development
the peak of perfection
peak adjective

peak

2 of 2 verb
: to reach or cause to come to a peak, point, or maximum

More from Merriam-Webster on peak

Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!