An archiphoneme is a single unit in linguistics representing two or more underlying phonemes.
An archiphoneme is an abstract representation of a phonemic contrast that cannot be expressed within the phonemic inventory of a language. It is used to describe underlying phonological contrasts that are neutralized in certain contexts.
Tsutomu Akamatsu has written: 'The theory of neutralization and the archiphoneme in functional phonology' -- subject(s): Archiphoneme, Comparative and general Grammar, Grammar, Comparative and general, Neutralization (Linguistics), Phonology 'Kindai Nihon ni okeru shakai jigyo no tenkai katei' 'Essentials of functional phonology' -- subject(s): Comparative and general Grammar, Functionalism (Linguistics), Grammar, Comparative and general, International Society for Functional Linguistics, Phonology