While Uruguay doesn't have many, if any, boarding schools in the traditional sense like those found in the UK or the US, there are some private schools that offer residential options for students. These are typically more limited in scope and may be linked to specific needs, like those requiring intensive academic support or those from outside the city needing lodging.
To find a school with residential options, it would be best to search specifically for "escuelas privadas con internado" (private schools with boarding) or "colegios con residencia" (schools with residence) in Uruguay, using Spanish-language search engines. You'll likely need to contact individual schools directly to confirm the availability of boarding.