Country whose name Americans spell with a "z"

BRASIL

Think of the largest Portuguese-speaking nation where Carnival lights up Rio’s streets.

This clue plays on how Americans often spell "Brazil" with a "z" instead of the Portuguese "s," making it "Braz-il." The answer, "BRASIL," is the correct Portuguese spelling, which drops the "z" entirely. It’s a clever way to hint at the country’s name while pointing out a common American spelling quirk.