Morphophonemics is the study of how the sounds of a language change depending on the morphological context. It examines the relationship between morphemes, the smallest units of meaning, and their phonetic forms. For example, the plural form of the word cat can be pronounced as /kæts/ or /kæp/, depending on the surrounding sounds. This field helps linguists understand how different forms of a word, such as run and running, can alter their pronunciation based on grammatical rules. Morphophonemics is essential for analyzing language patterns and contributes to our understanding of phonology and morphology.