Trubetzkoy also developed the concept of the "archiphoneme". Some suffixes contain an archiphoneme that can be realized as . As a result, linguistic descriptions tend to subsume both under an archiphoneme . Phonologically, this vowel is an archiphoneme representing the neutralization of and . In some regions of Kagoshima such as Uchinoura, a third archiphoneme is described. The archiphoneme |U| is an underspecified high vowel where only the tongue height is specified. An archiphoneme is an object sometimes used to represent an underspecified phoneme. The only consonant that can occur as a syllable coda is the archiphoneme .