to let the cat out of the bag идиом. не составлять секрета – to be general knowledge в секрете – (по секрету) in secret, secretly, in secrecy, stealthily
(держать) to keep smth.(a) secret, to keep to oneself, to keep quiet about smth. по секрету, под секретом – in secret, in (strict) confidence, secretly, confidentially, privately секрет полишинеля – open secret, widely known secret раскрыть секрет – to clue II муж.
физиол. secretion
secret