Phonogram (linguistics)

A phonogram is a grapheme i.e. one or more written characters which represent a phoneme (speech sound), rather than a bigger linguistic unit such as morphemes or words. For example, "igh" is an English-language phonogram that represents the sound in "high". Whereas the word phonemes refers to the sounds, the word phonogram refers to the letter(s) that represent that sound.

Phonograms contrast with logograms, which represent words and morphemes (meaningful units of language), and determinatives, silent characters used to mark semantic categories.

A writing system that consists of phonograms shows phonography and can be called phonographic.