Defining several terms Allomorph: --referring to a member of a set of morphs,which represent the same morpheme. Just as we class phones together as allophones of a single phoneme,we class morphs together as allomorphs of a single morpheme. To be exact,allomorphs refer to any of the variant forms of a morpheme as conditioned by position or adjoining sounds.Defining several terms Allomorph: --referring to a member of a set of morphs, which represent the same morpheme. Just as we class phones together as allophones of a single phoneme, we class morphs together as allomorphs of a single morpheme. To be exact, allomorphs refer to any of the variant forms of a morpheme as conditioned by position or adjoining sounds