Letters that make observation tower
s, a, o, b, e, n, r, t, i, v, w are letters that make 'observation tower'
Words within observation tower
ER, RV, vat, tower, OB, BS, ti, VA, VAT, at, SE, owe, on, tow, observation, Io, ion, Ob, BSE, At, Er, Se, Ti are words within 'observation tower'