Letters that make exponential return
a, o, e, l, n, p, r, t, i, u, x are letters that make 'exponential return'
Words within exponential return
urn, return, re, ti, pone, NT, PO, expo, RN, en, ex, one, on, exponential, turn, Ur, AL, IA, NE, Po, Re, exponent, TIA, Al, Ne, Rn, Ti, ret are words within 'exponential return'