Verb
fluctuate
IPA /ˈflʌktʃueɪt/
To rise, fall or otherwise vary repeatedly over time.
See example sentence: fluctuate
The temperature in the old house fluctuates throughout the day.
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Verb
oscillate
IPA /ˈɒsɪleɪt/
To move repeatedly backwards and forwards between positions.
See example sentence: oscillate
The fan oscillates slowly, sending air around the room.
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