Lively spirit

PEP

Think of the energy you feel after a strong cup of coffee or an upbeat song—this three-letter word captures that invigorating zest.

"Lively spirit" hints at a word for energy or enthusiasm, and "pep" fits perfectly as a short, punchy term for that exact idea. The clue plays on the literal meaning of "spirit" (as in vigor) rather than the supernatural kind, making it a straightforward definition. Think of how someone might say "full of pep" to describe a bubbly, energetic person—no tricks, just a direct match.