nounfemininepl: fronteiras
border
1. The line that separates two countries or regions
The border between Brazil and Argentina is very long.
A fronteira entre Brasil e Argentina é muito longa.
2. The edge or limit of a territory
They crossed the border illegally.
Eles atravessaram a fronteira ilegalmente.
3. The outermost limit of knowledge, exploration, or development
Space exploration is the new frontier.
A exploração espacial é a nova fronteira.
Related Idioms & Phrases
na fronteira - on the border/borderline
além da fronteira - beyond the border
expandir as fronteiras - to expand horizons
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