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

Match their energy level If someone’s profile hints that they’re reserved, don’t go overboard with exclamation points and an exuberant first message. —Angela Haupt, Time, 11 Aug. 2025

Depending on a pup's age, their energy levels can change. —Liz O'Connell, MSNBC Newsweek, 31 July 2025

Adding watermelon to your breakfast may boost energy levels by providing hydration and natural sugars. —Carrie Madormo, Verywell Health, 29 July 2025

Fortified with an organic B vitamin complex, including B5, B6, Biotin and B12, the drink provides steady energy and calm focus, supports psychological function, boosts energy levels and promotes healthy hair, skin and nails. —Angelina Villa-Clarke, Forbes.com, 21 July 2025

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