Alternation refers to the process of switching between different states, conditions, or actions, often to achieve balance or variety. It is a fundamental concept in various fields, including linguistics, computer science, and biology, where it can manifest as patterns, sequences, or cycles.
Morphophonemics studies the interaction between morphological and phonological processes in language, focusing on how morphemes are altered in different phonetic contexts. It examines the rules governing sound changes that occur when morphemes combine, influencing pronunciation and meaning.