Letters that make extraterrestrial
s, a, e, l, r, t, i, x are letters that make 'extraterrestrial'
Words within extraterrestrial
ER, stria, rate, RES, trial, rial, re, te, XT, at, RI, extra, terrestrial, ex, rest, rat, RA, AL, IA, Ra, Re, Ate, Al, At, Es, Er, Te, EST, err are words within 'extraterrestrial'