Frontier

• POS: Noun
• HYPHEN: fron=tier

CIDE DICTIONARY

Frontier, n. [F. frontière, LL. frontaria. See Front.].

•  That part of a country which fronts or faces another country or an unsettled region; the marches; the border, confine, or extreme part of a country, bordering on another country; the border of the settled and cultivated part of a country; as, the frontier of civilization.  [1913 Webster]
•  An outwork.  [1913 Webster]

  "Palisadoes, frontiers, parapets."  [1913 Webster]

Frontier, a. 

•  Lying on the exterior part; bordering; conterminous; as, a frontier town.  [1913 Webster]
•  Of or relating to a frontier.  W. Irving.  [1913 Webster]

Frontier, v. i. 

 To constitute or form a frontier; to have a frontier; -- with on.  Sir W. Temple.  [1913 Webster]

OXFORD DICTIONARY

Frontier, n.
1 a the border between two countries. b the district on each side of this.
2 the limits of attainment or knowledge in a subject.
3 US the borders between settled and unsettled country.

Derivative

frontierless adj.

Etymology

ME f. AF frounter, OF frontiere ult. f. L frons frontis FRONT

THESAURUS

Frontier

Berlin wall, China, Darkest Africa, God knows where, Greenland, North Pole, Outer Mongolia, Pago Pago, Pillars of Hercules, Siberia, South Pole, Thule, Tierra del Fuego, Timbuktu, Ultima Thule, Yukon, anteriority, antipodes, back country, backcountry, backwash, backwater, backwoods, bamboo curtain, bold front, boondock, boondocks, border, border ground, border line, bordering, borderland, borderline, bound, boundary, boundary condition, boundary line, bounding, bounds, bourn, brave face, brave front, break boundary, breakoff point, brush, bush, bush country, bushveld, ceiling, circumscription, coastal, compass, confine, cutoff, cutoff point, dark horse, deadline, delimitation, determinant, determinative, determining, display, division line, end, enigma, extreme, extremes, extremity, facade, face, facet, facia, finish, floor, fore, forefront, foreground, forehand, foreland, forepart, forequarter, foreside, forests, foreword, fringing, front, front elevation, front line, front man, front matter, front page, front view, frontage, frontal, frontier post, frontiers of knowledge, frontispiece, godforsaken place, hack, head, heading, hedge, high-water mark, hinterland, interface, iron curtain, jumping-off place, lap, limbic, limen, liminal, limit, limitation, limiting, limiting factor, limits, line, line of demarcation, littoral, low-water mark, lower limit, march, marches, marchland, marginal, mark, matter of ignorance, mete, mystery, n, nowhere, obverse, outback, outer space, outlandish, outpost, outskirts, pale, pole, preface, prefix, priority, proscenium, puzzle, remote, riddle, rimming, sealed book, skirting, start, starting line, starting point, sticks, target date, term, terminal, terminal date, terminus, terra incognita, the Great Divide, the South Seas, the boondocks, the bush, the incalculable, the moon, the sticks, the strange, the tullies, the unfamiliar, the unknowable, the unknown, three-mile limit, threshold, timbers, time allotment, twelve-mile limit, unexplored ground, unexplored territory, uninhabited region, unknown quantity, unsettled, up-country, upper limit, virgin land, virgin territory, wasteland, wild West, wilderness, wilds, window dressing, woodlands, woods, x, z

ROGET THESAURUS

Frontier

Contiguity

N contiguity, contact, proximity, apposition, abuttal, juxtaposition, abutment, osculation, meeting, appulse, rencontre, rencounter, syzygy, coincidence, coexistence, adhesion, touching, (touch), borderland, frontier, tangent, abutter, contiguous, touching, in contact, conterminous, end to end, osculatory, pertingent, tangential, hand to hand, close to, with no interval.

Limit

N limit, boundary, bounds, confine, enclave, term, bourn, verge, curbstone, but, pale, reservation, termination, terminus, stint, frontier, precinct, marches, backwoods, boundary line, landmark, line of demarcation, line of circumvallation, pillars of Hercules, Rubicon, turning point, ne plus ultra, sluice, floodgate, definite, conterminate, conterminable, terminal, frontier, bordering, thus far, thus far and no further, stick to the reservation, go beyond the pale, Special, limit, boundary, bounds, confine, enclave, term, bourn, verge, curbstone, but, pale, reservation, termination, terminus, stint, frontier, precinct, marches, backwoods, boundary line, landmark, line of demarcation, line of circumvallation, pillars of Hercules, Rubicon, turning point, ne plus ultra, sluice, floodgate, definite, conterminate, conterminable, terminal, frontier, bordering, thus far, thus far and no further, stick to the reservation, go beyond the pale, Special.