Singer abri antre bog bunker burrow cave cavern cesspool cloaca cloaca maxima cove drain dugout dump foxhole garbage dump garmentmaker grot grotto gutter headchute hole kennel lair marsh mire needleman needler needlewoman needleworker piscina quagmire scupper seamster seamstress sempster septic tank sewing machine sink sluice sough subterrane subway sump swamp tailor tunnel warren