Letters that make externalization
a, o, e, l, n, r, t, z, i, x are letters that make 'externalization'
Words within externalization
ER, ti, te, XT, extern, RN, Ali, at, liza, external, ex, on, li, ern, tern, AL, Io, ion, Al, At, Er, Li, Rn, Na, Te, Ti, RNA are words within 'externalization'