When two letters come together to make one sound, they are called a digraph. Some words end with -ck. ... Some words end with the double letters -ss, -ll, -ff, or -zz. These double letters also make just one sound.

Are double consonants considered digraphs?

Digraphs may consist of two different characters (heterogeneous digraphs) or two instances of the same character (homogeneous digraphs). In the latter case, they are generally called double (or doubled) letters. ... Doubled consonant letters can also be used to indicate a long or geminated consonant sound.

What are the 7 digraphs?

Common consonant digraphs include ch (church), ch (school), ng (king), ph (phone), sh (shoe), th (then), th (think), and wh (wheel).