hy

Example:The word 'dog' has three letters.

Definition:A grapheme in any set of written symbols used to represent the phonemes of a spoken language or language (as in a alphabet).

Example:In 'cat', 'c' and 't' are not vowels.

Definition:A speech sound that is produced without obstruction of the airstream in the vocal tract and can be linked freely with other sounds without creating deviations in the sounds.