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{{#invoke:Hatnote|hatnote}} {{#invoke:Hatnote|hatnote}} {{ safesubst:#invoke:Unsubst||$N=Use dmy dates |date=__DATE__ |$B= }} A phoneme {{#invoke:IPAc-en|main}} is all the phones that share the same signifier for a particular language's phonology. If the exchange of one phone in a word for another gives a new word with a different meaning, then the two phones belong to different phonemes. The difference in meaning between the English words kill and kiss is a result of the exchange of the phoneme /l/ for the phoneme /s/. Two words that differ in meaning through a contrast of a single phoneme form a minimal pair.

Within linguistics there are differing views as to exactly what phonemes are and how a given language should be analyzed in phonemic (or phonematic) terms. However, a phoneme is generally regarded as an abstraction of a set (or equivalence class) of speech sounds (phones) which are perceived as equivalent to each other in a given language. For example, in English, the "k" sounds in the words kit and skill are not identical (as described below), but they are distributional variants of a single phoneme /k/. Different speech sounds that are realizations of the same phoneme are known as allophones. Allophonic variation may be conditioned, in which case a certain phoneme is realized as a certain allophone in particular phonological environments, or it may be free in which case it may vary randomly. In this way, phonemes are often considered to constitute an abstract underlying representation for segments of words, while speech sounds make up the corresponding phonetic realization, or surface form.

Phoneme sections
Intro  Notation  Assignment of speech sounds to phonemes  Other features with phonemic status  Distribution of allophones  Background and related ideas  Restrictions on occurrence  Biuniqueness  [[Phoneme?section={{safesubst:#invoke:anchor|main}}Neutralization_and_archiphonemes|{{safesubst:#invoke:anchor|main}}Neutralization and archiphonemes]]  Morphophonemes  Numbers of phonemes in different languages  Correspondence between letters and phonemes  Phonemes in sign languages  See also  Notes  Bibliography  

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