definition

Phonology is a branch of linguistics concerned with the systematic organization of sounds in languages. It has traditionally focused largely on the study of the systems of phonemes in particular languages (and therefore used to be also called phonemic, or phonematics), but it may also cover any linguistic analysis either at a level beneath the word (including syllable, onset and rime,articulation gestures, articulatory features,more, etc.) or at all levels of language where sound is considered to be structured for conveying linguistic meaning. Phonology also includes the study of equivalent organizational systems in sign languages.