English noun: frontier |
1. | frontier (location) a wilderness at the edge of a settled area of a country |
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| Samples | The individualism of the frontier in Andrew Jackson's day.
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| Broader (hypernym) | wild, wilderness |
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2. | frontier (location) an international boundary or the area (often fortified) immediately inside the boundary |
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| Broader (hypernym) | bound, boundary, bounds |
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| Instance hyponym | Triple Frontier |
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3. | frontier (cognition) an undeveloped field of study; a topic inviting research and development |
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| Samples | He worked at the frontier of brain science.
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| Broader (hypernym) | bailiwick, discipline, field, field of study, study, subject, subject area, subject field |
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