is  an umbrella term used to describe a number of definitions. For example, noise, in a derogatory fashion may imply the production of sound, of music or singing is unwanted and simply seen as a disturbance of the otherwise peaceful environment.
In linguistics, an allomorph is a variant form of a morpheme, that is, when a unit of meaning varies in sound without changing meaning. The term allomorph explains the comprehension of phonological variations for specific morphemes.
Each morpheme may have a different set of allomorphs. For example, -en is a second allomorph that marks plural in nouns (irregular, in only three known nouns: ox/ox+en, child/childr+en, brother/brether+en). The morph -en is linked to the allomorph -en, which occurs in complementary distribution with -s.