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frontier

frontier

41 4.1
An area at the border between two countries, often guarded
  • noun
  • /frʌnˈtɪr/
translation icon : frontera
  • The soldiers were stationed along the frontier to prevent illegal crossings.
  • cross the frontier
  • national frontiers
  • northern frontier

As to your question why they simply didn't build more fortresses at the frontiers, three reasons.

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Examples

  • On August 20th, the Spanish crossed the frontier of Tlaxcala, a realm independent of the Aztecs.

    Academic text (1992)
  • Next day, I crossed the Dutch frontier.

  • I should reach the frontier in about six weeks.

  • Give me your weapon and return across the frontier.

  • this river will lead you in two days to arrive at the Chinese frontier

  • Sixty percent of western cars that cross the frontier are to be stolen.

    Fiction book (1994)
  • We are very close to the frontier of Nepal.

  • When Colonel Bouquet arrives, the frontier can start moving west again.

  • Derbent marked the northern frontier of the Sasanian state for more than 300 years.

    Academic text (2008)
  • The threat of Indian war along the state's frontiers had alarmed Georgians from their earliest days in America.

    Academic text (2011)

Synonyms

border
vsfrontier
1.0

A line that separates two countries or regions

often means the same area but can be a fortified strip inside the boundary
boundary
vsfrontier
232 3.1

A line or fence that marks the edge of an area and separates it from another

adds the idea of the nearby land inside that line, sometimes fortified
borderline
vsfrontier
9 4.1

A line that shows the edge between two places or countries

extends this line to mean the nearby border area, possibly fortified
borderland
vsfrontier
4 5.6

An area of land near the border between two countries or regions

means the land immediately inside the boundary and may be fortified
boundary line
vsfrontier
2 3.1

A line that shows the edge between two areas

includes that line but emphasizes the adjacent land just inside it
demarcation line
vsfrontier
2 5.5

A line or border that shows where one area ends and another begins

refers more to the land immediately inside such a limit rather than line
border district
vsfrontier
4.2

An area next to the line between two countries where people live on both sides

is the physical boundary area itself, not just an administrative unit
rimland
vsfrontier
  • Specialized
9.8

A country or continent's outer edge that is often important in politics

focuses on the actual boundary land itself rather than geopolitical theory

Compounds

The western United States in the 1700s and 1800s where settlers explored and lived

A small community at the edge of known land where pioneers live

8.4

A border area where Argentina, Brazil and Paraguay meet that is known for smuggling and other crime

How Fortified

frontier
41 4.1
border
1.0
demilitarized zone
  • Formal
8 4.8

Surface Forms

frontier singular
frontiers plural

Morphology

frontier = front (transparent) = front + ier

The meaning 'boundary/edge' is directly related to 'front' and can be inferred by learners from 'front' + a region-forming suffix.

Etymology

Frontier comes from the same root as front, from Latin frons meaning 'forehead' or 'front'. So a frontier is the 'front' or edge of a country, the border area where nations meet and often defend themselves.