any one of two or more speech sounds that considered variants of the same phoneme. For example, the p sounds of pin and spin are allophones of p; and the t sounds of toe stop and catnip are allophones of t.
A predictable phonetic variant of a phoneme, such as nasalized vowels.
phone, one of two or more phonetic variants of a phoneme. Examples: allophones of the /t/ phoneme in English yne as distinct from American wa er; allophones of the /r/ phoneme in Spanish io as against in Mad id.