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 of iceberg

• 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

The Farnborough Airshow is gigantic, covering the equivalent of 78 football pitches, and those five exhibit halls were just the tip of the proverbial iceberg. — David Szondy july 23, New Atlas, 23 July 2026

That’s why a flightseeing tour above peaks, glaciers, and iceberg lakes is a must-do for any visitor. — Stephanie Vermillion, Travel + Leisure, 23 July 2026

OpenAI and Anthropic do, however, have a lock on the most vital and expensive software machines ever created, and a way to stay at the peak of the AI iceberg of value. — Clem Chambers, Forbes.com, 22 July 2026

Parasite-laden lettuce should no longer be anywhere near a Taco Bell, because all of the iceberg that’s been linked to the outbreak has, according to the company that produced it, been recalled. — Nicholas Florko, The Atlantic, 22 July 2026

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