frontier definition

  • noun:
    • An international border.
    • The area along an international edge.
    • an area just beyond or at the edge of a settled area.
    • An undeveloped area or field for breakthrough or analysis: concepts on the frontier of astrophysics.
    • That part of a country which fronts or deals with another country or an unsettled region; the marches; the edge, confine, or severe part of a country, bordering on a different country; the border associated with settled and cultivated part of a country; because, the frontier of civilization.
    • That element of a country which fronts or deals with another country or an unsettled area; the marches; the edge, confine, or extreme part of a country, bordering on a different country; the edge associated with settled and cultivated part of a country.
    • An outwork.
    • That section of a country which fronts or deals with a different country; the confines or extreme part of a country bordering on a different country; the marches; the border.
    • That element of a country which types the border of its settled or inhabited areas: as (before the settlement of Pacific coastline), the western frontier associated with United States.
    • A fort; a fortification.
    • the leading or bordering section of something, as the forehead.
    • Antagonistic or insolent bearing or aspect. [The feeling of your message within the next passageway is disputed.
    • Synonyms Border, Confine, etc. See boundary.
    • an undeveloped area of study; an interest welcoming research and development
    • a wilderness at edge of a settled section of a country
    • a global boundary or perhaps the location (often fortified) immediately inside boundary
  • adjective:
    • Lying on the exterior part; bordering; conterminous.
    • Of or associated with a frontier.
    • Lying on the outside of part; bordering; conterminous.
    • Of or relating to a frontier.
  • verb-intransitive:
    • To constitute or form a frontier; to possess a frontier; -- with upon.
  • others:
    • Of or pertaining to a frontier; lying on the border or exterior part; bordering: as, a frontier town.
    • Fronting; opposite.
    • to make or constitute a frontier; have territories bordering on or constituting a frontier: with on or upon.
    • To place on the frontier; border.

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