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Rio Grande
geographical name
1
ˌrē-(ˌ)ō-ˈgrand 
-ˈgran-dē
alsoˌrī-ō-ˈgrand
or Mexican SpanishRío Bravoriver 1885 miles (3034 kilometers) long in the southwestern U.S. forming the boundary between Mexico and Texas and flowing from the San Juan Mountains in southwestern Colorado to the Gulf of Mexico2
orRio Grande do Sulcity in Rio Grande do Sul state, southern Brazil, west of the entrance toLagoa dos Patospopulation 197,228
3
ˌrē-(ˌ)ō-ˈgrän-dā
-dē
municipality in northeastern Puerto Rico east-southeast of San Juanpopulation 54,3044
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“Rio Grande.”Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/Rio%20Grande. Accessed 25 Nov. 2025.
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Britannica.com:Encyclopedia article aboutRio Grande
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