Letters that make auxiliary operation
a, o, e, l, n, p, r, t, i, u, y, x are letters that make 'auxiliary operation'
Words within auxiliary operation
ER, opera, Opera, pe, ti, ERA, liar, ration, ar, AU, at, XI, ratio, on, auxiliary, xi, il, li, operation, rat, RA, AR, IL, IA, Io, ion, Ra, Ar, At, Er, Au, Li, Ti, era are words within 'auxiliary operation'