Letters that make second-class
s, a, o, d, e, l, n, c are letters that make 'second-class'
Words within second-class
la, EC, SEC, lass, cl, SE, SS, second, on, sec, as, con, ass, class, AS, CO, LA, ND, As, Cl, Co, La, Nd, Se are words within 'second-class'