Definition of Guam in US English:

Guam

proper noun

  • The largest and most southern of the Mariana Islands, administered as an unincorporated territory of the US; population 170,000 (estimated 2015); capital, Agaña. Guam was ceded to the US by Spain in 1898. It was the site of fighting between the Japanese and the US during World War II.

Pronunciation

Guam

/ɡwäm/