0, Buenos, Cato, credo, Creole, Deo, depot, eco, ego, freehold, Geo, Guido, halo, hero, ito, keyhole, keynote, keystone, KINO, Leo, lino, Mayo, negro, neo, Nero, Pedro, Pharaoh, Philo, Plato, Plato's, primo, rainbow, Rico, Rio, scapegoat, seacoast, steamboat, Theo, threefold, trio, veto, vivo, waistcoats, Zeno, zero

amino, Barbadoes, Casino, Diego, Horatio, Marino, mosquito, mosquitoes, octavo, potato, potatoes, Shapiro, Toledo, tomato, tomatoes, tornado, torpedo, volcano, volcanoes

Constantino, incognito