 frontier |
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| 1. | [ noun ] an international boundary or the area (often fortified) immediately inside the boundary | |
| Related terms: | boundary boundary triple_frontier | |
| 2. | [ noun ] (geography) a wilderness at the edge of a settled area of a country | |
| Examples: | "the individualism of the frontier in Andrew Jackson's day" |
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| Related terms: | wilderness | |
| 3. | [ adjective ] on the American frontier | |
| Examples: | "one of the last real frontier towns" "hardships of frontier life" |
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| Related terms: | rural | |
| 4. | [ noun ] an undeveloped field of study; a topic inviting research and development | |
| Examples: | "he worked at the frontier of brain science" |
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| Related terms: | discipline | |
| Similar spelling: |
front front_line frontlet frontage Frenette Frint frontward frontmost frontwards front_yard front_room frontal frantic front-stall front_porch front_door front_crawl front_bench frenetic |
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