This document discusses consonant digraphs, which are two letters that represent a single sound. It focuses on the digraphs th, sh, and ch. Th makes a /th/ sound, sh makes a /sh/ sound, and ch has three possible sounds: /ch/ as in cheese, /sh/ as in chef, and /k/ as in chorus. Examples are provided of words containing each digraph and the sound it represents in that word, such as th in thermos, sh in dish, ch /ch/ in cheese, ch /sh/ in chef, and ch /k/ in chorus.