bordernounfeminine/ˈfɾõtɨ/highfron·tePortuguesEnglishEspanolFrancaisDefinitionThe line separating two countries, regions, or territories.They crossed the border at dawn.The river forms a natural border between the two provinces.synborderboundaryfrontierCommon collocationsland bordercross the borderborder guardborder disputeEtymologyDo latim 'frons, frontis' (testa, parte dianteira).Related wordsfronteiriçofrontalconfrontar