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'frontier' in a sentence

Learn how to use 'frontier' with 2 example sentences.


frontier noun

: a wilderness at the edge of a settled area of a country

: an international boundary or the area (often fortified) immediately inside the boundary

: an undeveloped field of study; a topic inviting research and development


  • We crossed the frontier yesterday.
  • Many families left to make a new life on the frontier.
  • Words related to 'frontier'


    Words near 'frontier' in the dictionary