loon

1 of 2

noun (1)

plural loons
1
: lout, idler
2
chiefly Scotland : boy
3
a
: an eccentric person
b

loon

2 of 2

noun (2)

: any of several large birds (genus Gavia of the family Gaviidae) of Holarctic regions that feed on fish by diving and have their legs placed far back under the body for optimal locomotion underwater

Illustration of loon

Illustration of loon

Did you know?

There are a number of theories about the origin of loon as it refers to a crazy person, its most common current meaning. One is that it comes from loony, meaning "crazy." But based on currently available evidence, loony is a late 19th-century alteration of lunatic that didn't come into use until decades after the meaning of loon in question. (It's still possible that loony influenced the development and spread of this meaning of loon.) Another guess is that this loon is from the avian loon, inspired either by the bird's maniacal cry or its displays to distract predators, such as skittering over water with its neck crooked. This is certainly possible, and is the origin story favored by some. But the story our dictionaries favor is a bit more quotidian: the current use of loon developed from earlier uses, primarily in Scottish and other northern dialects of British English, of loon to refer to a lout (an awkward, brutish person) or idler (someone who is idle, lazy, or inactive). While that loon, which is from Middle English loun, never spread to British English more broadly, immigrants from the regions where it was used had a significant influence on American English, and it's not far-fetched to posit that their loon developed into the distinctly American use of the word to refer to daffy people.

Examples of loon in a Sentence

Noun (1) giggled like a loon at his own jokes the loons at the grocery store had put the potato chips at the bottom of the bag
Recent Examples on the Web
Noun
In any case: Conservatives are habitually accused of being loons, bigots, and racists — falsely. Jay Nordlinger, National Review, 17 Sep. 2024 Share [Findings] In Maine, a loon stabbed a bald eagle through the heart. Rafil Kroll-Zaidi, Harper's Magazine, 25 Sep. 2024 Most Popular Photos: MN United’s loon sculpture comes together near Allianz Field Longtime Mendota supper club Axel’s closing after nearly 30 years Metro Transit police chief, previously on leave from department, now out Calling all voters: What is the ‘Coolest Thing Made in Minnesota’? Mara H. Gottfried, Twin Cities, 24 Sep. 2024 The giant loon sculpture near Allianz Field in St. Paul is beginning to look flightworthy. Kyle Stokes, Axios, 23 Sep. 2024 See all Example Sentences for loon 

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'loon.' 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 (1)

Middle English loun

Noun (2)

of Scandinavian origin; akin to Old Norse lōmr loon

First Known Use

Noun (1)

15th century, in the meaning defined at sense 1

Noun (2)

1634, in the meaning defined above

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

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Dictionary Entries Near loon

Cite this Entry

“Loon.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/loon. Accessed 14 Oct. 2024.

Kids Definition

loon

noun
ˈlün
: any of several large diving birds that eat fish, have a long pointed bill and webbed feet, and usually nest on the banks of lakes and ponds

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