frontier
the part of a country that borders another country; boundary; border.
the land or territory that forms the furthest extent of a country's settled or inhabited regions.
Often frontiers.
the limit of knowledge or the most advanced achievement in a particular field: the frontiers of physics.
an outer limit in a field of endeavor, especially one in which the opportunities for research and development have not been exploited: the frontiers of space exploration.
Mathematics. boundary (def. 3).
of, relating to, or located on the frontier: a frontier town.
Origin of frontier
1synonym study For frontier
Other words from frontier
- fron·tier·less, adjective
- fron·tier·like, adjective
- sem·i·fron·tier, noun
- trans·fron·tier, adjective
Words Nearby frontier
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024
How to use frontier in a sentence
Privacy advocates such as the Electronic frontier Foundation say everyone should use it.
A cousin took me to the National frontier Trail Museum, where I jotted down dutiful notes.
She went ahead and flew on frontier Flight 1143 from Cleveland back to Dallas.
Nothing but watch, that is, and prevent Kurdish reinforcements from crossing the frontier to help defend Kobani.
Kobani is Falling to ISIS in Syria. Kurd Protests Explode in Turkey. | Jamie Dettmer | October 10, 2014 | THE DAILY BEASTA guy with a baseball cap tells me that the frontier one closed last month.
And it was no light task, then, for six hundred men to keep the peace on a thousand miles of frontier.
Raw Gold | Bertrand W. SinclairHe was long engaged in sanguinary war with the Turks and the French, who pillaged and destroyed his frontier towns.
The Every Day Book of History and Chronology | Joel MunsellNext morning Rome rang with the affair; by noon all three Englishmen were safely over the frontier.
The Pit Town Coronet, Volume I (of 3) | Charles James WillsThe wild frontier life had drawn him in and under, as in a whirlpool; but he was New Englander yet at heart.
Ramona | Helen Hunt JacksonTen victories would not cost as much as the first week's march towards the frontier.
British Dictionary definitions for frontier
/ (ˈfrʌntɪə, frʌnˈtɪə) /
the region of a country bordering on another or a line, barrier, etc, marking such a boundary
(as modifier): a frontier post
US and Canadian
the edge of the settled area of a country
(as modifier): the frontier spirit
(often plural) the limit of knowledge in a particular field: the frontiers of physics have been pushed back
Origin of frontier
1Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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