English noun: watershed |
1. | watershed (location) a ridge of land that separates two adjacent river systems |
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| Synonyms | divide, water parting |
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| Broader (hypernym) | line |
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| Narrower (hyponym) | continental divide |
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| Instance hyponym | Great Divide |
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2. | watershed (location) the entire geographical area drained by a river and its tributaries; an area characterized by all runoff being conveyed to the same outlet |
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| Samples | Flood control in the Missouri basin.
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| Synonyms | basin, catchment area, catchment basin, drainage area, drainage basin, river basin |
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| Broader (hypernym) | geographic area, geographic region, geographical area, geographical region |
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| Narrower (hyponym) | detention basin, retention basin |
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3. | watershed (event) an event marking a unique or important historical change of course or one on which important developments depend |
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| Samples | The agreement was a watershed in the history of both nations.
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| Synonyms | landmark, turning point |
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| Broader (hypernym) | juncture, occasion |
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| Narrower (hyponym) | Fall of Man, road to Damascus |
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