iceberg
Americannoun
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icebergs
plural
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a large floating mass of ice, detached from a glacier and carried out to sea.
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Informal. an emotionally cold person.
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Australian Informal. a person who swims or surfs regularly in winter.
idioms
noun
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a large mass of ice floating in the sea, esp a mass that has broken off a polar glacier
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the small visible part of something, esp a problem or difficulty, that is much larger
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slang a person considered to have a cold or reserved manner
Discover More
Most of the ice in an iceberg is underwater, leaving only the “tip of the iceberg” visible — a fact that is often alluded to in discussions of subjects in which the most important aspects are hidden from view.
Other Word Forms
Noun Inflected Forms
Etymology
Origin of iceberg
1765–75; half Anglicization, half adoption of Dutch ijsberg ice mountain; cognate with German Eisberg, Swedish isberg
Explanation
An iceberg is a huge chunk of ice that breaks off of a glacier and floats around the ocean. Most of an iceberg is under water and can't be seen; that's how a sneaky iceberg managed to sink the Titanic. Icebergs exist in the coldest waters on the planet — the largest icebergs ever observed have been in Antarctica. An iceberg is blamed in the famous sinking of the Titanic in 1912, and the disaster inspired a new system for tracking and measuring icebergs. Another kind of iceberg is the lettuce, which is crisp and nearly as pale as an actual iceberg. The colloquial "tip of the iceberg" means the smallest hint of a much larger problem.
Vocabulary lists containing iceberg
Physical Geography - Introductory
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Physical Geography - Middle School
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Physical Geography - High School
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Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
See Examples For:
Chief Executive Bruce Taylor said the company won’t sell iceberg lettuce in the U.S. or Canada that was harvested or processed in the region between May 1 and Aug. 31, starting next year.
From The Wall Street Journal ● Oct. 8, 2026
"This name is the tip of the iceberg," Yeni leader Ozgur Ozel told a party meeting on Wednesday, describing the scandal as "the robbery of the century".
From Barron's ● Sep. 30, 2026
"What we're looking at in Thornton-Cleveleys at the moment might be seen as something of an outlier. My worry is that it's the tip of the iceberg, it's just the beginning," she added.
From BBC ● Sep. 23, 2026
This is merely the tip of the “NAZA” iceberg, and at times, it feels alarmingly and disappointingly difficult to compartmentalize it all at once.
From Salon ● Sep. 21, 2026
The mothers asked each other where they could get carrots and broccoli, iceberg lettuce, apples, peaches, or pears.
From "When I Was Puerto Rican" by Esmeralda Santiago
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Von der Leyen's tour included a boat trip among icebergs, meetings with top Greenlandic and Danish officials and the signing a joint statement between Greenland and the European Union.
From Barron's ● Sep. 7, 2026
Some thicker icebergs that break from tidewater glaciers without floating ice shelf extensions can scrape along the seabed or become grounded inside a fjord.
From Science Daily ● Sep. 4, 2026
Most of these events are likely glacial earthquakes due to capsizing icebergs.
From Science Daily ● Aug. 30, 2026
I instead recall coasting past a flotilla of icebergs in Alaska’s Glacier Bay.
From Los Angeles Times ● Jul. 8, 2026
Without data, you're the Titanic, crossing an Atlantic chock-full of icebergs without radar.
From "Black Swan Green" by David Mitchell
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Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.