A change or fluctuation in amount or condition, especially variations up and down; often used for exchange rates, prices, or temperatures.
為替の変動が輸出企業の業績に影響を与えた。
Exchange rate fluctuations affected the performance of export companies.
季節による気温の変動が大きい地域だ。
This region has large seasonal temperature fluctuations.
株価の変動を注視する必要がある。
It is necessary to closely watch stock price fluctuations.