Morphophonology(alsomorphophonemics,morphonology) is a branch oflinguisticswhich studies the interaction betweenmorphologicalandphonologicalorphoneticprocesses.Its chief focus is the sound changes that take place inmorphemes(minimal meaningful units) when they combine to form words.
Morphophonological analysis often involves an attempt to give a series of formal rules that successfully predict the regular sound changes occurring in the morphemes of a given language.Such a series of rules converts a theoreticalunderlying representationinto a surface form that is actually heard.The units of which the underlying representations of morphemes are composed are sometimes calledmorphophonemes.The surface form produced by the morphophonological rules may consist ofphonemes(which are then subject to ordinary phonological rules to produce speech sounds orphones),or else the morphophonological analysis may bypass the phoneme stage and produce the phones itself.
Phonologyis a branch oflinguisticsconcerned with the systematic organization ofsoundsin languages.It has traditionally focused largely on study of thesystemsofphonemesin particularlanguages,but it may also cover anylinguistic analysiseither at a level beneath the word (includingsyllable,onset andrhyme,articulatory gestures,articulatory features,mora,etc.) or at all levels of language wheresoundis considered to be structured for conveyinglinguistic meaning.Phonology also includes the study of equivalent organizational systems insign languages.
The wordphonology(as inthe phonology of English) can also refer to the phonological system (sound system) of a given language.This is one of the fundamental systems which a language is considered to comprise,like itssyntaxand itsvocabulary.
Phonology is often distinguished fromphonetics.While phonetics concerns the physical production,acoustic transmission andperceptionof the sounds of speech,[1][2]phonology describes the way sounds function within a given language or across languages to encode meaning.For many linguists,phonetics belongs todescriptive linguistics,and phonology totheoretical linguistics,although establishing the phonological system of a language is necessarily an application of theoretical principles to analysis of phonetic evidence.Note that this distinction was not always made,particularly before the development of the modern concept ofphonemein the mid 20th century.Some subfields of modern phonology have a crossover with phonetics in descriptive disciplines such aspsycholinguisticsandspeech perception,resulting in specific areas likearticulatory phonologyorlaboratory phonology.
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