Word Study
undergroan |
underground |
underground insurance |
underground press |
underground railroad |
underground railway
| undergrove
| undergrow
| undergrown
| undergrowth
| undergrub
underground railway
WORDNET DICTIONARY
Noun underground railway has 1 sense
- underground railway(n = noun.act) underground railroad - secret aid to escaping slaves that was provided by abolitionists in the years before the American Civil War; Array is a kind of escape, flight
For further exploring for "underground railway" in Webster Dictionary Online
