Metrô.
n.An underground way or gallery; especially, a passage under a street, in which water mains, gas mains, telegraph wires, etc., are conducted.
n.metro, tube, underground, subway system, railway generic term, railroad generic term, railroad line generic term, railway line generic term, railway system generic term noun, underpass, tunnel generic term
Vogais: uay
Consoantes: sbw
scuba, sba, sbw, soubah, sub, shipway, sickbay, squabby, suavify, succuba.