frontier

noun

fron·​tier ˌfrən-ˈtir How to pronounce frontier (audio)
ˈfrən-ˌtir,
frän-ˈtir,
ˈfrän-ˌtir How to pronounce frontier (audio)
1
a
: a border between two countries
the frontier between Canada and the U.S.
b
obsolete : a stronghold on a frontier
2
a
: a region that forms the margin of settled or developed territory
were sent on an expedition to explore the western frontier
b
: the farthermost limits of knowledge or achievement in a particular subject
frontiers in immunology
c
: a line of division between different or opposed things
the frontiers separating science and the humanitiesR. W. Clark
d
: a new field for exploitative or developmental activity
… the brain lies before us as one of the last scientific frontiers here on earth.Robert Klitzman
frontier adjective

Examples of frontier in a Sentence

the frontier between Canada and the U.S. They were sent on an expedition to explore the western frontier.
Recent Examples on the Web In this show, the relationships matter as much as the race to the new frontier. Ben Rosenstock, TIME, 27 June 2024 Unlike westerns of old, Costner also seeks to portray the frontier with greater complexity, from providing the Native-American perspective to touching upon bigotry against the Chinese and the encroachment of the Civil War. Brian Lowry, CNN, 27 June 2024 Yet there’s another frontier for colleges looking to generate revenue through sports that has yet to be explored—the sacred jersey. Jason Clinkscales, Sportico.com, 25 June 2024 Hilary Swank gives us the Western version of that idea here, as a single woman managing her own farm on the unforgiving frontier. and Kevin Jacobsen, EW.com, 21 June 2024 See all Example Sentences for frontier 

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'frontier.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

Etymology

Middle English fronter, from Anglo-French frountere, fronter, from front

First Known Use

15th century, in the meaning defined at sense 1a

Time Traveler
The first known use of frontier was in the 15th century

Dictionary Entries Near frontier

Cite this Entry

“Frontier.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/frontier. Accessed 13 Jul. 2024.

Kids Definition

frontier

noun
1
: a border between two countries
2
a
: a region that forms the edge of the settled part of a country
b
: the outer limits of knowledge or achievement
the frontiers of science
frontier adjective

More from Merriam-Webster on frontier

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