Pep is a high spirited kind of energy. It takes a lot of pep (and pom-poms) to be a cheerleader.

Watching a school play in which the actors are full of pep is a lot more fun than seeing lethargic performers halfheartedly go through the motions. After a good night's sleep and a cup of tea, you might have plenty of pep to start your day — but it might take your older sister longer to truly wake up. Pep first appeared in 1912, as a shortened form of pepper, which once meant "moxie" or "gusto."

Definitions of pep

n liveliness and energy

“this tonic is guaranteed to give you more pep
ginger, peppiness
Type of:
life, liveliness, spirit, sprightliness
animation and energy in action or expression

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