GIS a phonetic spelling (up to six characters) of a street name, used for address matching —note 1. each of the 26 letters in the alphabet corresponds to a letter in the soundex equivalent: English: A = A, B = B, C = C, D = D, E = A, F = B, G = C, H = H, I = A, J = C, K = C, L = L, M = M, N = M, O = A, P = B, Q = , R = R, S = C, T = D, U = A, V = B, W = W, X = C, Y = A, Z = C —note 2. where possible, geocoding uses a soundex equivalent of road names for faster processing; during geocoding, initial candidate road names are found using soundex, then real names are compared and verified This definition last updated 10/07/2008