This document discusses silent letters in the English language. It provides examples of letters that can be silent in certain contexts, including a, b, c, ch, d, e, g, gh, h, i, k, l, m, n, o, p, r, s, t, u, w, and y. Common patterns of silent letters are provided such as b silent after m, g silent before n, h silent at the beginning of words, and o silent before n. Over 40 examples of words containing silent letters are listed.