音おん韻いん交こう替たい

noun

phonological alternation; sound alternation

Linguistics term referring to systematic variation in sounds within a language, such as vowel changes or consonant shifts.

• 日本にほん語ごの音おん韻いん交こう替たいの例れいとして、連れん濁だくが挙あげられる。

  An example of phonological alternation in Japanese is rendaku.