- 1 known about by only a few people; kept hidden from others secret information/meetings/talks secret (from somebody) He tried to keep it secret from his family. Details of the proposals remain secret. a secret passage leading to the beach see also top secret
- 2[only before noun] used to describe actions and behavior that you do not tell other people about He's a secret drinker. I didn't know you were a secret football fan. her secret fears a secret room
- 3[not usually before noun] secret (about something) (of a person or their behavior) liking to have secrets that other people do not know about; showing this synonym secretive They were so secret about everything. Jessica caught a secret smile flitting between the two of them.
- adverb The police had secretly filmed the conversations. She was secretly pleased to see him.
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