an international boundary or a wilderness at the edge of a settled area
The frontiers between the three super-states are in some places arbitrary, and in others they fluctuate according to the fortunes of war, but in general they follow geographical lines.
This explains the fact that in some places the frontiers between the superstates are arbitrary.
The fighting, when there is any, takes place on the vague frontiers whose whereabouts the average man can only guess at, or round the Floating Fortresses which guard strategic spots on the sea lanes.
It is therefore realized on all sides that however often Persia, or Egypt, or Java, or Ceylon may change hands, the main frontiers must never be crossed by anything except bombs.
Eastasia, smaller than the others and with a less definite western frontier, comprises China and the countries to the south of it, the Japanese islands and a large but fluctuating portion of Manchuria, Mongolia, and Tibet.
Eurasia, for example, could easily conquer the British Isles, which are geographically part of Europe, or on the other hand it would be possible for Oceania to push its frontiers to the Rhine or even to the Vistula.
He seemed actually to see the Eurasian army swarming across the never-broken frontier and pouring down into the tip of Africa like a column of ants.
Between the frontiers of the super-states, and not permanently in the possession of any of them, there lies a rough quadrilateral with its corners at Tangier, Brazzaville, Darwin, and Hong Kong, containing within it about a fifth of the population of the earth.
The frontiers of Eurasia flow back and forth between the basin of the Congo and the northern shore of the Mediterranean; the islands of the Indian Ocean and the Pacific are constantly being captured and recaptured by Oceania or by Eastasia; in Mongolia the dividing line between Eurasia and Eastasia is never stable; round the Pole all three powers lay claim to enormous territories which in fact are largely unihabited and unexplored: but the balance of power always remains roughly even,…
All round the world, in London and New York, in Africa and Brazil, and in the mysterious, forbidden lands beyond the frontiers, in the streets of Paris and Berlin, in the villages of the endless Russian plain, in the bazaars of China and Japan — everywhere stood the same solid unconquerable figure, made monstrous by work and childbearing, toiling from birth to death and still singing.
There are no more uses of "frontier" identified with this meaning in the book.
Show samples from other sources
Indian soldiers and technicians assisted in staffing some of the checkposts on the frontier with Tibet.
They pass freely through mountain passes along the Afghanistan-Pakistan frontier.