Fluctuation English Flashcard for Fluctuation for IELTS Updated: August 25, 2019 by Dr. Mohammad Hossein Hariri AslFluctuation English FlashcardFluctuation English Flashcard(noun)/ˌflʌk.tjuˈeɪ.ʃən/a change or variation in the amount, price, rate, etc. of something over time:There is so much fluctuation in the interest rates among the young.