Definition of Frontier

  • (n.) That part of a country which fronts or faces another country or an unsettled region; the marches; the border, confine, or extreme part of a country, bordering on another country; the border of the settled and cultivated part of a country; as, the frontier of civilization.
  • (n.) An outwork.
  • (a.) Lying on the exterior part; bordering; conterminous; as, a frontier town.
  • (a.) Of or relating to a frontier.
  • (v. i.) To constitute or form a frontier; to have a frontier; -- with on.

Homophones of Frontier


No Antonyms Found.



Common English words

A list of the most frequently used words in the English languge.

Longest English Words

Longest words in the Oxford Dictionary.