alphabetic character vs vowel

Other hyponyms of alphabetic character include ascender, descender, digram, digraph, initial, A, a, B, b, C, c, D, d, E, e, F, f, G, g, H, h, I, i, J, j, K, k, L, l, M, m, N, n, O, o, P, p, Q, q, R, r, S, s, T, t, U, u, V, v, double-u, W, w, ex, X, x, wye, Y, y, ezed, izzard, Z, z, zed, zee, alpha, beta, gamma, delta, epsilon, zeta, eta, theta, iota, kappa, lambda, mu, nu, xi, omicron, pi, rho, sigma, tau, upsilon, phi, chi, khi, psi, omega, aleph, beth, gimel, daleth, he, waw, zayin, heth, teth, yodh, kaph, lamedh, mem, nun, samekh, ayin, pe, sadhe, qoph, resh, sin, shin, taw, polyphone, polyphonic letter, block capital, block letter, consonant, yus.