secreto
secret
noun adjective seh-KREH-toh Less Common
Origin: From Latin secretus (set apart, hidden).
Usage Note
Secreto functions as both noun and adjective: guardar un secreto (to keep a secret), una reunión secreta (a secret meeting). The phrase en secreto means 'in secret' or 'secretly'. Secreto a voces is a Spanish idiom for an 'open secret' — something everyone knows but no one officially states. The feminine adjective form is secreta.
Examples
"Prometió guardar el secreto."
Natural Translation
He promised to keep the secret.

Free starter pack
Building your Spanish vocabulary?
Get the 100 most common Spanish words as a free PDF — one email, no spam.
Related Words
Explore Spanish by topic