secret

noun
se·cret
/ˈsiː.kɹɪt/

A piece of knowledge that is hidden and intended to be kept hidden.

Example

“"Can you keep a secret?" "Yes." "So can I."”

Other meanings

The key or principle by which something is made clear; the knack.
“The secret to a long-lasting marriage is compromise.”
Something not understood or known.

Example sentences

“How can you speak our secret language?”
Tatoeba · shekitten · CC0
“What is your go-to beauty secret?”
Tatoeba · Igider · CC0
“I hope you won't go telling people my secret.”
Tatoeba · ddnktr · CC0

Word history

From Latin "sēcrētum".

Where this comes from

This definition is adapted from “secret” on Wiktionary, by its contributors; example sentences are from Tatoeba, credited to their authors above, published under CC BY-SA 4.0. This page is published under the same licence.