energy level

noun

: one of the stable states of constant energy that may be assumed by a physical system

—used especially of the quantum states of electrons in atoms and of nuclei

called also energy state

Examples of energy level in a Sentence

Recent Examples on the Web

People who want to take their energy levels down a notch—hanging out in a hammock or in the Himalayan salt room, trying new wines and cheeses, performing downward dogs on the sand. —Condé Nast, Condé Nast Traveler, 28 Apr. 2026

The quiet efficiency that underlies everything tends to preserve energy levels, which is a critical, albeit understated ingredient in Emery’s success in European competitions throughout his managerial career. —Jacob Tanswell, New York Times, 26 Apr. 2026

Electrons within atoms could only occupy a series of discrete energy levels, demonstrating that nature was often discrete, not always continuous. —Big Think, 23 Apr. 2026

This combo may improve digestion, regulate appetite, and steady your energy levels. —Kathleen Ferraro, Verywell Health, 23 Apr. 2026

Word History

First Known Use

1902, in the meaning defined above

Rhymes for energy level

• mediaeval
• bevel
• devil
• daredevil
• sublevel
• multilevel

Kids Definition

energy level

noun

: one of the stable states of constant energy that may be assumed by a physical system

—used especially of the states of electrons in atoms