🇬🇧 Fluctuate meaning: English Vocabulary Flash Card

When something fluctuates, it keeps changing up and down instead of staying the same, like the way a roller coaster goes high and low or how the numbers on a thermometer go hotter and colder during the day.

The smell coming from my gym bag fluctuates between "old socks" and "toxic science experiment."

My motivation to clean my room fluctuates wildly between "I’ll do it later" and "I shall never do it."

The temperature in our house fluctuates so much I need a winter coat in the kitchen and shorts in the living room.

My dog’s loyalty fluctuates between me and whoever is holding the treats.

My mood started to fluctuate when I realized we had ice cream, then didn’t, then did again because Mom found another tub in the freezer.

On a small boat the lantern light would fluctuate as waves fluctuate. His breath would fluctuate with fear; the child's grip would fluctuate between tight and loose. The sea could fluctuate so the sky might fluctuate with it. At dawn the wind stopped; both smiled, calm and safe, and hugged each other.

This word is at the C2 level, which means it represents the highest mastery of English. It’s often used in specialized or highly formal contexts and helps you communicate with precision and subtlety, much like a native speaker.

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