peaks and valleys

plural noun

: high and low periods

There are peaks and valleys in electricity usage throughout the year.

Examples of peaks and valleys in a Sentence

Recent Examples on the Web

Each key, meanwhile, features corresponding peaks and valleys. — Shayla Love, New Yorker, 10 Oct. 2026

Kelvin waves are slow-moving pulses of water that travel beneath the ocean's surface, creating broad peaks and valleys. — ABC News, 7 Oct. 2026

The spoils of Affleck’s and Damon’s onscreen accomplishments documented in these halls have had peaks and valleys. — Matt Donnelly, Variety, 7 Oct. 2026

As is the case with any athlete, there will always be peaks and valleys in performance. — Danny Brewer, Forbes.com, 30 Aug. 2026

Rhymes for peaks and valleys

• alleys
• galleys
• gallies
• rallies
• sallies
• tallies