fluctuate

/ˈflʌkt͡ʃu.eɪt/verb

To rise and fall or change repeatedly in an irregular way.

Example sentence

“Gas prices fluctuate from week to week.”

Standard for prices, temperatures, moods, and weight. It implies movement both up and down; if the change runs one way, use 'rise' or 'decline' instead.

Related words

fluentFlowing smoothly and easily, like a moving liquid.flourishA sweeping, showy movement or decorative touch made to impress.foggyCovered in fog, or hazy and hard to see or think through clearly.flourA fine powder made by grinding grain, especially wheat, or other foods such as potatoes, used for baking bread, cakes, and pastry.folderA named storage area on a computer where files and other folders can be kept together.floorboardOne of the long wooden planks fixed across joists to form a floor.