frontier

fron·tier

noun
\ˌfrən-ˈtir, ˈfrən-ˌ, frän-ˈ, ˈfrän-ˌ\

Definition of FRONTIER

1

a : a border between two countries b obsolete : a stronghold on a frontier

2

a : a region that forms the margin of settled or developed territory b : the farthermost limits of knowledge or achievement in a particular subject c : a line of division between different or opposed things <the frontiers separating science and the humanities — R. W. Clark> d : a new field for exploitative or developmental activity

— frontier adjective

Examples of FRONTIER

1. the frontier between Canada and the U.S.
2. They were sent on an expedition to explore the western frontier.

Origin of FRONTIER

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

First Known Use: 15th century

Related to FRONTIER

Synonyms: border, borderland, march

Related Words: no-man's-land

see all synonyms and antonyms

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Rhymes with FRONTIER

adhere, Aesir, Ajmer, all clear, ambeer, appear, arrear, Asir, Ayrshire, besmear, by ear, Cape Fear, career, cashier, cashmere, Cheshire, chimere, clavier, cohere, compeer, destrier, dog-ear, emir, Empire, endear, ensphere, eyrir, Fafnir, footgear, gambier, Goodyear, headgear, inhere, Izmir, Kashmir, kefir, killdeer, Landseer, leap year, life peer, light-year, man-year, menhir, midyear, mishear, monsieur, mouse-ear, mule deer, musk deer, nadir, near beer, New Year, off year, out-year, pickeer, portiere, premier, premiere, red deer, redear, rehear, reindeer, revere, revers, Robespierre, roe deer, root beer, santir, severe, Shakespeare, sincere, slick-ear, small beer, spruce beer, steer clear, Tangier, tapir, tin ear, uprear, Vanir, veneer, Vermeer, vizier, voir dire, wheatear, Wiltshire, wind shear, wood ear, worm gear, Ymir, Yorkshire, zaire, Zaire