iceberg

noun

ice·​berg ˈīs-ˌbərg 

1

: a large floating mass of ice detached from a glacier

2

: an emotionally cold person

3

: iceberg lettuce

Synonyms

• clam
• icicle
• stick

Examples of iceberg in a Sentence

a brilliant doctor, no doubt, but both patients and staff complain that he is an iceberg

Recent Examples on the Web

According to eyewitness testimony and post-wreck analysis, the Titanic took approximately two hours and 40 minutes to sink after crashing into an iceberg — not fast enough for Eric Braeden. —Ryan Coleman, EW.com, 7 July 2025

Trinity’s heritage endures in modern maritime outfitters like Sea of Whales Adventures, which explores the nearby coast in Zodiac boats in search of whales, dolphins, puffins, bald eagles and icebergs. —Joe Yogerst, Forbes.com, 1 July 2025

In hindsight; the captain would have turned away from the iceberg. —Tim Britton, New York Times, 18 June 2025

While icebergs and rocky shorelines dominate the Antarctic coastline that cruise ships navigate, the heart of the continent is another world, one of shimmering blue ice tunnels and crevasses, jagged mountain peaks, and vast moonscapes. —Chloe Berge, Outside Online, 17 June 2025

Word History

Etymology

probably partial translation of Danish or Norwegian isberg, from is ice + berg mountain

First Known Use

1784, in the meaning defined at sense 1

Phrases Containing iceberg

• iceberg lettuce
• the tip of the iceberg
• tip of the iceberg

Kids Definition

iceberg

noun

ice·​berg ˈīs-ˌbərg 

: a large floating mass of ice detached from a glacier