frontier
/fɹʌnˈtɪɹ/ noun B2- The part of a country which borders or faces another country or unsettled region. · the frontier of civilization
- The most advanced or recent version of something; the leading edge. · Near-synonyms: vanguard, state of the art· the frontier of solid state electronics
Plural frontiers
From the library
Caderousse was, like Fernand, enrolled in the army, but, being married and eight years older, he was merely sent to the frontier.
The old patron, who was obliged to sail in the morning in order to land his cargo on the frontiers of Piedmont and France, between Nice and Fréjus, urged Dantès to try and rise.
Fernand was enrolled in the active army, went to the frontier with his regiment, and was at the battle of Ligny.
We take him to the other side of the French frontier, and offer him hospitality at Bourges.”
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