Guam

American  

[gwahm] / gwɑm /

noun

1. an island, belonging to the United States, in the northern Pacific, east of the Philippines: the largest of the Marianas group; U.S. naval station. 206 sq. mi. (535 sq. km). Agaña. GU (for use with zip code).

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Guam British  

/ ɡwɑːm /

noun

1. an island in the N Pacific, the largest and southernmost of the Marianas: belonged to Spain from the 17th century until 1898, when it was ceded to the US; site of naval and air force bases. Capital: Agana (now officially spelt Hagåtña). Pop: 160 378 (2013 est). Area: 541 sq km (209 sq miles)

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Guam Cultural  

1. A self-governing island territory of the United States, located in the western Pacific Ocean. With important naval and air bases, Guam is an American military bastion in the Pacific.

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Other Word Forms

Derived Forms

• Guamanian
  noun

Example Sentences

The Pacific Tsunami Warning Center in Honolulu issued a tsunami advisory for the U.S. territories of Guam and the Northern Mariana Islands.

From The Wall Street Journal • Jun. 8, 2026

Lai's last official overseas trip was in November 2024, when he visited Taiwan's Pacific allies and transited through the US territory of Guam.

From Barron's • Apr. 23, 2026

The attack on the base, as well as similar attacks in the Philippines and Guam, spurred the United States to declare war on Japan.

From Salon • Mar. 19, 2026

Guam and Puerto Rico, and about 370 dd’s Discounts stores in 23 states.

From Los Angeles Times • Mar. 10, 2026

The landing on Guam was set for June 18.

From "Code Talker: A Novel About the Navajo Marines of World War Two" by Joseph Bruchac