Synonym: hidden, mysterious, private, secluded. Antonym: open. Similar words: in secret, secretary, desecrate, consecrate, decree, desecration, decreed, ice-cream. Meaning: ['sɪːkrɪt] 
n. 1. something that should remain hidden from others (especially information that is not to be passed on) 2. information known only to a special group 3. something that baffles understanding and cannot be explained. adj. 1. not open or public; kept private or not revealed 2. conducted with or marked by hidden aims or methods 3. not openly made known 4. communicated covertly 5. not expressed 6. designed to elude detection 7. hidden from general view or use 8. (of information) given in confidence or in secret 9. indulging only covertly 10. having an import not apparent to the senses nor obvious to the intelligence; beyond ordinary understanding 11. the next to highest level of official classification for documents.
n. 1. something that should remain hidden from others (especially information that is not to be passed on) 2. information known only to a special group 3. something that baffles understanding and cannot be explained. adj. 1. not open or public; kept private or not revealed 2. conducted with or marked by hidden aims or methods 3. not openly made known 4. communicated covertly 5. not expressed 6. designed to elude detection 7. hidden from general view or use 8. (of information) given in confidence or in secret 9. indulging only covertly 10. having an import not apparent to the senses nor obvious to the intelligence; beyond ordinary understanding 11. the next to highest level of official classification for documents. 
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(1) A secret between more than two is no secret. 
(2) Self trust is the first secret of success.
(3) The secret of wealth lieth in the letters SAVE.
(4) The secret of success is constancy of purpose.
(5) I have no secret of success but hard work.
(6) To know how to wait is the great secret of success.
(7) You have to believe in yourself.That's the secret of success.
(8) The secret of being miserable is to have leisure to bother about whether you are happy or not.
(9) The only secret a woman can keep is that of her age.
(10) You have to believe in yourself. That's the secret of sucess.
(11) The secret of success in life is for a man to be ready for his opportumity when it comes.
(12) The secret of a good momory is attention[sentencedict.com], and attention to a subject depends upon our interest in it-- We rarely forget that which has made a deep impression on our minds.
(13) Discipline was the new coach's secret weapon.
(14) She imparted the secret to her friend.
(15) Don't tell him any secret—he's got a big mouth.
(16) The secret was spread among the crowd.
(17) They will go into secret session.
(18) I want you to keep the secret.
(19) It is a secret between them and me.
(20) He can't keep a secret.
(21) Perhaps the flowers were sent by a secret admirer!
(22) She babbled the secret out to her boyfriend.
(23) What is the secret of his success?
(24) Don't tell anyone my secret.
(25) I wasn't very successful at keeping the news secret.
(26) The party leader is elected by secret ballot .
(27) The minister revealed the secret to me.
(28) Let me tell you a secret.
(29) Details of the proposals remain secret.
(30) The three things most difficult are, to keep a secret, to forget an injury(sentencedict .com), and to make good use of labour.
More similar words: in secret, secretary, desecrate, consecrate, decree, desecration, decreed, ice-cream, decrepit, decrease, decrescent, recreation, excrete, concrete, fertile crescent, accretion, syncretic, discretion, decry, sec., recruit, scarecrow, secede, insect, sector, secure, second, necromancer, recruitment, seclude.