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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(241) The test questions are kept secret so as to prevent cheating.
(242) I was heading on a secret mission that made my flesh crawl.
(243) For the first time, we have the chance to examine the anatomy of a secret government operation.
(244) The dissidents lived in a twilight world of hushed voices and secret meetings.
(245) Who sent you those flowers - have you got a secret admirer?
(246) The details of the new car were a well-kept secret.
(247) The trial was kept secret because of the risk of public disorder.
(248) The secret to happiness...be satisfied and be grateful. Mitch Albom 
(249) Our fearlessness shall be our secret weapon. John Green
(250) Adopt the pace of nature: her secret is patience. Ralph Waldo Emerson
(251) The secret to success is constancy of purpose. Benjamin Disraeli
(252) No one gossips about other people’s secret virtues. Bertrand Russell
(253) The secret to getting ahead is getting started. Mark Twain
(254) I'd learned that some things are best kept secret. Nicholas Sparks
(255) Secret guilt is by silence revealed. John Dryden
(256) The secret of happiness is not in doing what one likes, but in liking what one does. James Matthew Barrie
(257) No man with a complex life can be happy! The simple secret of the happiness is simple life! Mehmet Murat ildan
(258) The secret of life, though, is to fall seven times and to get up eight times. Paulo Coelho
(259) Every man has his secret sorrows which the world knows not; and often times we call a man cold when he is only sad. Henry Wadsworth Longfellow
(259) Sentencedict.com is a sentence dictionary, on which you can find excellent sentences for a large number of words.
(260) Believe me! The secret of reaping the greatest fruitfulness and the greatest enjoyment from life is to live dangerously! Friedrich Nietzsche
(261) The man who can keep a secret may be wise, but he is not half as wise as the man with no secrets to keep. Edgar Watson Howe
(262) The secret of human power lies in the mind and the thoughts it produces. Dr T.P.Chia
(263) The secret of success is making your vocation your vacation. Mark Twain
(264) What is a secret wish? It is what you want but cannot ask. Amy Tan
(265) Moments of their secret life together burst like stars upon his memory. James Joyce
(266) Three may keep a secret, if two of them are dead. Benjamin Franklin
(267) Success is almost totally dependent upon drive and persistence. The extra energy required to make another effort or try another approach is the secret of winning. Denis Waitley
(268) The ability to convert ideas to things is the secret to outward success. Henry Ward Beecher
(269) The secret of being a bore is to tell everything. Voltaire
(270) Would you learn the secret of the sea? Only those who brave its dangers, comprehend its mystery! Henry Wadsworth Longfellow
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.