frontier

English · Thesaurus

AI In plain words

Writing a short explanation…

Written by a house AI from the entry below, in your language. The entry itself is the source.

frontier^¹

/ˈfɹʌntɪə/ UK
/ˈfɹɒntɪə/ UK
/ˈfɹʌntjə/ UK
/ˈfɹɒntjə/ UK
/fɹʌnˈtɪə/ UK
/fɹɒnˈtɪə/ UK
/fɹʌnˈtɪɹ/ US
/fɹɑnˈtɪɹ/ US
/ˈfɹʌnt͡ʃə/ obsolete

Rhymes with -ɪə(ɹ)

Where it comes from

From Middle English frounter, from Old French fronter (whence Modern French frontière), from front.

noun frontiers

The part of a country which borders or faces another country or unsettled region. the frontier of civilization
Similar: march, marches, border, marchland, borderland
The most advanced or recent version of something; the leading edge. Near-synonyms: vanguard, state of the art
Similar: vanguard, state of the art
obsolete An outwork of a fortification. thou hast talk'd. Of sallies and retires, of trenches, tents, Of palisadoes, frontiers, parapets

verb frontiers · frontiering · frontiered

intransitive To live as pioneers on frontier territory.
obsolete, transitive To place on the frontier. now that it is no more a Border, nor frontiered with Enemies, why should such Privileges be any more continued?

Frontier^²

proper noun

An unincorporated community in Woodbridge Township, Hillsdale County, Michigan.
An unincorporated community in Koochiching County, Minnesota, located on the Canadian border.
A minor city in Cass County, North Dakota.
An unincorporated community in Lincoln County, Wyoming.
A village in Saskatchewan, Canada.
A rural municipality on the US border in south-west Saskatchewan, which includes the village; in full, the Rural Municipality of Frontier No. 19.

Thesaurus

Closest in meaning: rural, border, bordering, boundary, edge, cross-border, transborder, front-line, frontline, avant-garde, vanguard, barrier, borderland, trailblazer, peak, pioneer

Translations

Every language

noun part of a country that fronts or faces another country or an unsettled region

Español	frontera
한국어	경계 gyeonggye, 국경 gukgyeong
日本語	境界 kyōkai, 国境
中文	邊界 /边界 biānjiè, 邊疆 /边疆 biānjiāng, 邊境 /边境 biānjìng, 國境 /国境 guójìng, 國界 /国界 guójiè
हिन्दी	सीमा sīmā, सरहद sarhad, सीमांचल sīmāñcal
Português	fronteira
Français	frontière
Deutsch	Grenzland, Grenzgebiet, Grenzgegend, Grenze, Mark, Grenzmark
Italiano	confine, frontiera
Ελληνικά	σύνορο sýnoro
Română	frontieră
Русский	грани́ца graníca, рубе́ж rubéž, окра́ина okráina, межа́ mežá, кордо́н kordón
العربية	حَدّ ḥadd, حُدُود ḥudūd

Talk about this word

Cite this

MLA

"frontier." Wiktionary, via Micwyn, micwyn.com/word/frontier. Accessed 6 Nov. 2026.

APA

frontier. (n.d.). In Wiktionary, via Micwyn. Retrieved November 6, 2026, from https://micwyn.com/word/frontier

Chicago

"frontier." Wiktionary, via Micwyn. Accessed November 6, 2026. https://micwyn.com/word/frontier.

BibTeX

@misc{frontier_2026,
  title = {frontier},
  howpublished = {Wiktionary, via Micwyn},
  year = {2026},
  url = {https://micwyn.com/word/frontier},
  urldate = {2026-11-06}
}