|Origin:||Latin secretus, past participle of secernere 'to separate'|
se‧cret1 S3 W3
known about by only a few people and kept hidden from others [↪ secrecy]:
They kept their relationship secret from their parents.
agents on a secret mission
secret talks with the terrorists
secret compartment/passage etc
The drugs were found in a secret compartment in Campbell's suitcase.
The cookies are made to a secret recipe.
2 [only before noun]
secret feelings, worries, or actions are ones that you do not want other people to know about:
His secret fear was that Jenny would leave him.
Did you know you had a secret admirer (=someone who is secretly in love with you)?
something that will help you gain a big advantage over your competitors, that they do not know about
used to describe the behaviour of someone who is keeping their thoughts, intentions, or actions hidden from other people [= secretive]
They're being very secret about it.
There was a secret smile on her face.
They were secretly married.