Alphabets are split into vowels and consonants.
Vowels
Alphabets like A, E, I, O, U are called as vowels.
Consonants
Alphabets other than vowels are called as consonants.
Consonant letters in the English alphabet are B, C, D, F, G, H, J, K, L, M, N, P, Q, R, S, T, V, W, X, Y, Z.