fron
tier
Plural
frontiers
1
the outer edge of occupied or developed land, beyond which lies unsettled territory
- Pioneers migrated westward, steadily pushing the frontier of settlement into new territories.
- During the 19th century, settlers pushed west across the Great Plains, gradually expanding the frontier of the young American nation.
- Speculators and prospectors often ventured ahead of the settled frontier in search of fertile lands and mineral wealth.
2
an undeveloped field of study; a topic inviting research and development
3
an area located at a border, where two countries or regions meet
- The town lies right on the frontier, making it a strategic location for trade.
- Customs officers work diligently at the frontier to enforce immigration laws.
- The conflict at the frontier escalated tensions between the neighboring nations.
- The explorers set up camp at the frontier to begin their journey into uncharted territories.
- The soldiers were stationed at the frontier to monitor any movement between the two countries.