frontier : Idioms & Phrases


Flanks of a frontier

  • salient points in a national boundary, strengthened to protect the frontier against hostile incursion.
Webster 1913

frontier settlement

  • noun a settlement on the frontier of civilization
    outpost.
WordNet

last frontier

  • noun a state in northwestern North America; the 49th state admitted to the union
    AK; Alaska.
    • Alaska is the largest state in the United States
WordNet

triple frontier

  • noun the border area where Argentina and Brazil and Paraguay meet; an active South American center for contraband and drug trafficking and money laundering; a suspected locale for Islamic extremist groups
WordNet