fluctuate
US /ˈflʌk.tʃu.eɪt/
UK /ˈflʌk.tʃu.eɪt/

1.
berfluktuasi, berubah-ubah, naik turun
rise and fall irregularly in number or amount
:
•
The stock market prices fluctuate daily.
Harga pasar saham berfluktuasi setiap hari.
•
Her mood often fluctuates between happiness and sadness.
Suasana hatinya sering berfluktuasi antara kebahagiaan dan kesedihan.