Oahu

American

[oh-ah-hoo] / oʊˈɑ hu /

Or O'ahu

noun

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

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.

Jason Momoa, the Game of Thrones and Aquaman actor, said that his family had to evacuate their home on the North Shore of Oahu due to the storm.

From BBC • Mar. 22, 2026

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

Mikey, a resident of the Oahu town of Wahiawa, told Hawaii News Now that floodwaters woke him and his wife up after midnight on Saturday.

From BBC • 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

I knew he loved basketball, went for long runs on the weekends, and spoke wistfully of his friends and family on Oahu.

From "Becoming" by Michelle Obama

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023