fluctuate
/ˈflʌk.tʃu.eɪt/
verb
- To rise and fall irregularly in number, amount, or level.
- Her interest in the project fluctuated over the months.
- The price of oil tends to fluctuate based on global demand.
- Temperatures fluctuate greatly between day and night in the desert.
- To change back and forth between different states or opinions.
- She fluctuated between staying and leaving all afternoon.
- Voters often fluctuate between supporting different candidates.
- His mood fluctuates between excitement and anxiety.