IPA: /ˈæl.ə.foʊn/
KK: /ˈæl.ə.foʊn/
A variant pronunciation of a single sound in a language, where different sounds can be used in similar contexts without changing the meaning. For example, the different ways to pronounce the letter 't' in 'top' and 'stop' are examples of this concept.
In linguistics, the aspirated 't' in 'top' and the unaspirated 't' in 'stop' are examples of allophones.
Allophone → It is formed from "allo-" (from Greek "allos", meaning other or different) and "phone" (from Greek "phone", meaning voice or sound). The word "allophone" refers to different sounds or variations of a phoneme in a particular language.
Think of 'other' ('allo-') sounds ('phone') that represent variations in pronunciation — that's what an allophone is.