digraphs

Updated: May 17, 2025

There are, for example, at least twenty vowel sounds in the English language, not to speak of certain digraphs; that is to say, each of the important vowels has from two to six sounds. Each of these vowel sounds may enter into combination with the b sound alone to form three syllables; as ba, ab, bal, be, eb, bel, etc. Thus there are at least sixty b-sound syllables.

Edward Huntington Williams - A History of Science — Volume 1