frontier
The part of a country which borders or faces another country or unsettled region.
Example
“the frontier of civilization”
Other meanings
The most advanced or recent version of something; the leading edge.
“the frontier of solid state electronics”
An outwork of a fortification.
Related words
- cyberfrontier
- efficient frontier
- e-frontier
- final frontier
- frontier AI
- Frontier County
- frontierism
- frontierist
- frontierless
- frontierlike
- frontierman
- Pareto frontier
Word history
From Old French "fronter".
Where this comes from
This definition is adapted from “frontier” on Wiktionary, by its contributors, published under CC BY-SA 4.0. This page is published under the same licence.