wax and wane

Idioms

Increase and decrease, as in size, number, strength, or intensity, as in Enrollments in these programs wax and wane from year to year. This expression alludes to the phases of the moon, with its periodic changes in size. It was first recorded in the 1300s.

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

But in the political world, it does wax and wane.

From BBC • Mar. 3, 2026

Their power doesn’t wax and wane depending on their clothing.

From Salon • Nov. 9, 2024

Genres always wax and wane at the fest, with classic rock and EDM giving way to rap and pop.

From Los Angeles Times • Apr. 14, 2024

She said hospice has seen an uptick in patients with dementia, conditions in which “a patient can wax and wane for months or even years.”

From Seattle Times • Feb. 17, 2024

They understood that she could wax and wane for a long time.

From "Typical American" by Gish Jen

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023