frontier

noun

1. The part of a country which borders or faces another country or unsettled region.

   “the frontier of civilization”

   “There were not many passengers, and the journey was uneventful until the frontier was reached at Padang Besar, although an armed escort of Malay police accompanied the train from Alor Star.”

   “From time to time the coaches of the Lötschberg Railway itself, which in comfort and décor can rank with the finest in Europe today, travel far from the frontiers of Switzerland on through workings such as these.”

   “Unlike a boundary, which evokes the image of a line on a map and demarcates spheres of political control, the frontier is an area where colonisation is taking place....no authority is recognised as legitimate by all parties or is able to [exercise] undisputed control over the area.”

   “But there is also real opposition to Nato expansion - and even to Nato's continued existence after the Cold War. This is a view shared by a very large part of Russia's military and foreign affairs establishment. Educated and trained during the Soviet period, they are still inculcated with notions of super-power military might. It has been painful for these people to see Nato's outer edge creep ever closer to what was once the frontier of the USSR.”

2. The most advanced or recent version of something; the leading edge.

   “Near-synonyms: vanguard, state of the art”

   “the frontier of solid state electronics”

3. (obsolete)An outwork of a fortification.

   “thou hast talk'd. Of sallies and retires, of trenches, tents, Of palisadoes, frontiers, parapets”

verb

1. (intransitive)To live as pioneers on frontier territory.
2. (obsolete, transitive)To place on the frontier.

   “now that it is no more a Border, nor frontiered with Enemies, why should such Privileges be any more continued?”

name

1. A place in the United States:
2. A place in the United States:
3. A place in the United States:
4. A place in the United States:
5. A village in Saskatchewan, Canada.
6. A rural municipality on the US border in south-west Saskatchewan, which includes the village; in full, the Rural Municipality of Frontier No. 19.