| NOUN | person | William Clark, Clark | United States explorer who (with Meriwether Lewis) led an expedition from St. Louis to the mouth of the Columbia River |
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| Meaning | United States explorer who (with Meriwether Lewis) led an expedition from St. Louis to the mouth of the Columbia River; Clark was responsible for making maps of the area (1770-1838 ). | |
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| Synonym | Clark | |
| Instance of | explorer, adventurer | someone who travels into little known regions (especially for some scientific purpose) |