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Oahu

American  
[oh-ah-hoo] / oʊˈɑ hu /
Or O'ahu

noun

  1. an island in central Hawaii: third largest and most important island of the state; location of Honolulu. 589 sq. mi. (1,525 sq. km).


Oahu British  
/ əʊˈɑːhuː /

noun

  1. an island in central Hawaii: the third largest of the Hawaiian Islands. Chief town: Honolulu. Pop: 876 151 (2000). Area: 1574 sq km (608 sq miles)

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

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.

As floodwaters begin to recede on Oahu, residents are returning home to assess the damage and, in many cases, what’s been lost.

From Salon • Mar. 22, 2026

The northern part of Oahu received 8 to 11 inches of rain Thursday into Friday, Parker said.

From The Wall Street Journal • Mar. 20, 2026

Shortly thereafter, the family moved to Oahu, where Otto was paid by Japanese naval intelligence to surveil the Americans’ Pacific base.

From The Wall Street Journal • Dec. 4, 2025

Thousands of people along the coast there fled for higher ground as waves of 1.2m hit Oahu, and even larger ones of 1.7m struck Maui.

From BBC • Jul. 30, 2025

One afternoon, we borrowed a car and drove to the North Shore of Oahu, where we sat on a ribbon of soft beach and watched surfers rip across enormous waves.

From "Becoming" by Michelle Obama

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