Sample Sentences for
frontier
grouped by contextual meaning
(editor-reviewed)

frontier as in:  the frontier of Tibet

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Indian soldiers and technicians assisted in staffing some of the checkposts on the frontier with Tibet.
frontier = an international boundary or a wilderness at the edge of a settled area
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    They pass freely through mountain passes along the Afghanistan-Pakistan frontier.
    frontier = an international boundary in a relatively unsettled area
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    Alaska has long been a magnet for dreamers and misfits, people who think the unsullied enormity of the Last Frontier will patch all the holes in their lives.  (source)
    Frontier = wilderness area
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    However, in our Pashtun homeland of the North West Frontier Province things were very different.  (source)
    Frontier = a wilderness area starting to be settled
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    Anna worried the first wife might hurt her baby, so she returned to her father, where she gave birth to twins, though only one would survive the harsh winter on the frontier.  (source)
    frontier = area that is less developed
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    When I was about five years old, while making an excursion beyond the frontiers of Italy, they passed a week on the shores of the Lake of Como.  (source)
    frontiers = international boundaries
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    To the European world the whole province was a barbaric frontier inhabited by a sect of fanatics who, nevertheless, were shipping out products of slowly increasing quantity and value.  (source)
    frontier = a wilderness area starting to be settled
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    He went on a nine-day drunk, awoke in one of the deeper hive tunnels of Lusus with his military cornlog implant stolen-by someone who apparently had taken a correspondence course in surgery-his universal card and farcaster access revoked, and his head exploring new frontiers of pain.†  (source)
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    All of them, all except Phineas, constructed at infinite cost to themselves these Maginot Lines against this enemy they thought they saw across the frontier, this enemy who never attacked that way—if he ever attacked at all; if he was indeed the enemy.  (source)
    frontier = an international boundary or a wilderness at the edge of a settled area
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    I made a fine speech about the violation of international frontiers, and habeas corpus and the like; but Chief Justice Robinson was having none of it.†  (source)
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    He holed up alone, reading Zane Grey novels and wishing himself into them, a man and his horse on the frontier, broken off from the world.  (source)
    frontier = wilderness area
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    New Frontiers in Dental Health.†  (source)
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    Our new home was one of the oldest buildings in town, Mom proudly told us, with a real frontier quality to it.  (source)
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    I am also indebted to the wide range of materials available from Human Rights Watch, Save the Children, CARE, Defence for Children International, the Children's Institute, médecins sans frontiers, Amnesty International, War Child, and other NGOs.†  (source)
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frontier as in:  the frontier of brain science

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She is extending the frontiers of voice-controlled computer applications.
frontiers = most recent progress in a changing field
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    The company is extending the frontier of driverless cars.
    frontier = the most recent progress in a changing field
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    Blood rushed to my brain; I felt an animating surge of adrenaline, of possibility, of a frontier being pushed outward.  (source)
    frontier = rapidly changing area of knowledge
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    …against this instrumental background, a much more than human voice began to warble; now throaty, now from the head, now hollow as a flute, now charged with yearning harmonics, it effortlessly passed from Gaspard's Forster's low record on the very frontiers of musical tone to a trilled bat-note high above the highest C to which (in 1770, at the Ducal opera of Parma, and to the astonishment of Mozart) Lucrezia Ajugari, alone of all the singers in history, once piercingly gave utterance.  (source)
    frontiers = most extreme limit
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The frontier of hope that we all innately pursue will never close.†  (source)
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meaning too rare to warrant focus

Show 2 with this contextual meaning
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    ...and we stayed at the Old Faithful Inn in a Frontier Cabin.  (source)
    Frontier = a type of log cabin
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    Gram and Gramps were both still awake in our Frontier Cabin on the edge of Yellowstone National Park.  (source)
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