noun🔗ShareFronterasThe part of a country which borders or faces another country or unsettled region""The soldiers guarded the country's frontiers against any possible invasion from neighboring nations." "Los soldados custodiaban las fronteras del país contra cualquier posible invasión de las naciones vecinas.geographynationareapoliticsstateChat with AIVocabulary GamePractice Reading
noun🔗ShareFronteras, vanguardiaThe most advanced or recent version of something; leading edge."the frontier of civilization"la vanguardia de la civilizacióntechnologyscienceachievementChat with AIVocabulary GamePractice Reading
noun🔗ShareAvanzada, puesto avanzadoAn outwork of a fortification."The soldiers patrolled the frontiers of the castle's outer wall, watching for enemy movements. "Los soldados patrullaban las avanzadas de la muralla exterior del castillo, vigilando los movimientos enemigos.militaryarchitecturewarChat with AIVocabulary GamePractice Reading
