frontier
🇺🇸
/frʌnˈtɪr/
🇬🇧
/ˈfrʌntɪə(r)/
noun
R
a border between countries or areas
The town sits on the frontier between two nations.
R
the wild, unsettled land at the edge of a settled area
Pioneers moved west to live on the American frontier.
R
the farthest limit of knowledge or progress
Scientists are pushing the frontier of medical research.
translation
a border between countries or areas; the wild, unsettled land at the edge of a settled area; the farthest limit of knowledge or progress
Word Forms
Plural
frontiers