allofónja
The term allofónja refers to the phonetic realization of a phoneme. In linguistics, a phoneme is the smallest unit of sound that can distinguish meaning in a language. An allophone is one of the variations in pronunciation of a phoneme. For example, in English, the phoneme /p/ has two common allophones: the aspirated [pʰ] as in "pin," and the unaspirated [p] as in "spin." While these sounds are different phonetically, they do not change the meaning of the word. Native speakers of a language typically perceive allophones as the same sound and are often unaware of their existence.
The choice of which allophone is used in a particular context is usually determined by phonetic environment