Fluctuate

medium

FLUK-choo-ayt

verb

Definition

To rise and fall irregularly in number or amount

Examples

Stock prices fluctuate daily based on market conditions.
Her mood seemed to fluctuate throughout the day.

Synonyms

oscillatevacillatewavervary

Antonyms

stabilizeremainpersiststeady

Categories

GRE Tip

Fluctuate is a medium-difficulty GRE word. On the GRE, you might see it paired with synonyms like "oscillate" or "vacillate" in Sentence Equivalence questions. Look for contrast clues (however, despite, although) that signal the opposite meaning. Words like "stabilize".

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