synonym | metrosubwaysubway systemtube |
hypernym | railroadrailroad linerailwayrailway linerailway system |
synonym | resistance |
hypernym | revolutionary group |
hyponym | Maquis |
synonym | clandestinecloak-and-daggerhole-and-cornerhugger-muggerhush-hushsecretsurreptitiousundercover |
similar | covert |
synonym | belowground |
similar | subsurface |