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Definition of Underground railway
1. Noun. Secret aid to escaping slaves that was provided by abolitionists in the years before the American Civil War.
Definition of Underground railway
1. Proper noun. (alternative form of Underground Railroad) ¹
2. Noun. A subway system for the movement of trollies or trains. ¹
3. Noun. (usually capitalized) (alternative form of Underground Railroad) ¹
¹ Source: wiktionary.com
Lexicographical Neighbors of Underground Railway
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