Letters that make sound alphabet
s, a, o, b, d, e, l, n, p, h, t, u are letters that make 'sound alphabet'
Words within sound alphabet
LP, AB, ab, alphabet, UN, sou, HA, be, abet, pH, sound, alpha, so, bet, AL, ND, alp, Al, Be, Nd, Ab are words within 'sound alphabet'