Speech-sound character

• Any written symbol standing for a sound or syllable or morpheme or word

The Collaborative International Dictionary Word definitions in The Collaborative International Dictionary
Phonogram \Pho"no*gram\, n. [Phono- + -gram.] A letter, character, or mark used to represent a particular sound. Phonograms are of three kinds: (1) Verbal signs, which stand for entire words; (2) Syllabic signs, which stand for the articulations of which ...

Wikipedia Word definitions in Wikipedia
A phonogram is a grapheme (written character) which represents a phoneme (speech sound) or combination of phonemes, such as the letters of the Latin alphabet or the Japanese kana . For example, "igh" is an English-language phonogram that represents the ...

Douglas Harper's Etymology Dictionary Word definitions in Douglas Harper's Etymology Dictionary
1845, "a written symbol," from phono- + -gram . From 1879 as "a sound recording."

WordNet Word definitions in WordNet
n. any written symbol standing for a sound or syllable or morpheme or word

Wiktionary Word definitions in Wiktionary
n. 1 (context linguistics English) A group of letters which share the same letter combination associated with a sound, such as rhyme words. 2 (context legal English) An audio recording.