Oahu
geographical name
Oa·hu
ō-ˈä-(ˌ)hü
variants
or O'ahu
island of Hawaii in the Pacific where the city of Honolulu is located area 589 square miles (1531 square kilometers)
Cite this Entry
“Oahu.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/Oahu. Accessed 25 Aug. 2026.
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