Letters that make distinguishable
s, a, b, d, e, g, l, n, h, t, i, u are letters that make 'distinguishable'
Words within distinguishable
AB, ab, GUI, ti, ting, ng, HA, able, GU, in, sting, tin, IN, Dis, LE, NGU, In, Ti, Ab, distinguish are words within 'distinguishable'