Showing results for frontiers. Search instead for rentierens.

frontiers

NOUN

boundary

Synonyms

STRONG

borderland borderline bound confines edge limit march perimeter verge

Antonyms

STRONG

center inside interior middle

WEAK

metropolis

NOUN

unexplored, unoccupied area of land

Synonyms

STRONG

backwater backwoods boondocks bush hinterland outback outskirts sticks unknown

WEAK

backcountry boonies

Antonyms

WEAK

metropolis

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Pyongyang closed its borders in January 2020 to stop the spread of the coronavirus, with research and media reports indicating that the diplomatically isolated nation spent subsequent years bolstering security along its frontiers.

From Barron's • Apr. 28, 2026

Gene therapy, which introduces new instructions into the body to treat the root cause of a disease, has been one of medicine’s most promising frontiers.

From The Wall Street Journal • Apr. 23, 2026

Hodgkinson's latest triumph leaves upgrading from silver to gold at the world outdoors and Commonwealths as the final frontiers as far as her international medal collection is concerned.

From BBC • Mar. 22, 2026

It also snapped up new talent — and new exploration frontiers — when it acquired Hess last year.

From MarketWatch • Mar. 3, 2026

And the other, fainter galaxies must be more distant still, a hundred billion of them, sprinkled through the dark to the frontiers of the known Cosmos.

From "Cosmos" by Carl Sagan