 | English  | German |  |
 | mil. pol. classified {adj} [officially secret] | 415 geheim |  |
 | closet {adj} [attr.] [secret, e.g. smoker, homosexual, communist, gambler] | 321 heimlich [z. B. Raucher, Homosexueller, Kommunist, Spieler] |  |
 | sly {adj} [secret, hidden] | 273 heimlich [verschmitzt, versteckt] |  |
 | deep {adj} [mystery, secret] | 271 dunkel [fig.] [Geheimnis, Rätsel etc.] |  |
 | confidential {adj} [secret] | 129 geheim |  |
 | leaked {adj} {past-p} [secret information disseminated] | 103 zugespielt [konspirativ zur Kenntnis gebracht] |  |
 | clandestine {adj} [secret, concealed] | 49 klandestin [geh.] [heimlich, verborgen] |  |
 | backdoor {adj} [secret] | 19 heimlich |  |
 | untold {adj} [secret] | 15 ungelüftet [nicht enthüllt] |  |
 | dark {adj} [secret] | 12 geheim |  |
 | closet {adj} [attr.] [kept secret from others, hidden] | 10 verkappt [heimlich, insgeheim] |  |
 | dern {adj} [secret] [archaic or regional] | 6 geheim |  |
Verbs |
 | to divulge sth. [a secret, sensitive information, etc.] | 3446 etw.Akk. enthüllen [fig.] [geh.] [ein Geheimnis, sensible Informationen etc.] |  |
 | to bug sth. [to install secret listening devices in or on sth.] | 698 etw.Akk. verwanzen [etw. mit Abhörwanzen versehen] |  |
 | to impart [secret] | 119 preisgeben |  |
 | to blow sth. [coll.] [secret] | 55 etw. verraten |  |
 | to broadcast sth. [secret] | 10 etw. austrompeten |  |
 | electr. to bug sth. [to install secret listening devices in or on sth.] | Wanzen in / an etw.Dat. installieren [Abhörwanzen] |  |
 | to hide sth. [keep secret] | etw.Akk. geheim halten |  |
 | to probe sb. [in order to find out secret or hidden information] | jdm. auf den Zahn fühlen [ugs.] [Redewendung] |  |
Nouns |
 | intel {sg} [coll.] [(useful) information, esp. military information collected about an enemy's secret plans] | 512 Informationen {pl} [bes. Geheimdienstinformationen] |  |
 | assignation [secret rendezvous] | 138 Verabredung {f} [geheimes Rendezvous] |  |
 | betrayal [of secret] | 114 Preisgabe {f} |  |
 | archi. closet [secret room] | 92 Geheimzimmer {n} |  |
 | creep [sl.] [spy, secret agent] | 73 Spion {m} |  |
 | jobs operative [secret agent] | 63 Geheimagent {m} |  |
 | intelligence {sg} [secret service information] | 44 Geheimdienstinformationen {pl} |  |
 | activities [secret, forbidden, or subversive] | 40 Umtriebe {pl} |  |
 | operative [secret service] | 16 Agent {m} [Geheimdienst] |  |
 | law privity [shared secret knowledge] | 11 Mitwisserschaft {f} |  |
 | admin. declassification [official release of secret documents, information, etc.] | 10 Freigabe {f} [von geheimen Dokumenten, Informationen usw.] |  |
 | murmuring [semi-secret communication] | 10 Geraune {n} |  |
 | stiff [Am.] [sl.] [secret message from prison] | 10 Kassiber {m} |  |
 | hist. pol. KGB [Committee for State Security; former Soviet secret service] | 6 KGB {n} {m} [Komitee für Staatssicherheit beim Ministerrat der UdSSR; ehem. sowjetischer Geheimdienst] |  |
 | MI6 [coll.] [formerly Military Intelligence section 6, now named Secret Intelligence Service] | 5 MI6 {m} [der britische Nachrichtendienst] |  |
 | paramour [(illicit or secret) lover] | 5 Paramour {m} [Liebhaber, Geliebte] [veraltet] |  |
 | student [particularly of something secret or exotic] [also hum.] | 5 Adept {m} |  |
 | [assassination by some secret political organization] | Fememord {m} |  |
 | backhander [Br.] [coll.] [secret payment] | heimliche Zahlung {f} |  |
 | pol. ballot [secret ballot] [type of voting] | geheime Wahl {f} |  |
 | hist. pol. Carbonari [a 19th century Italian Unitarian secret society] | Carbonari {pl} [auch: Karbonari] [italienischer, unitaristischer Geheimbund im 19. Jahrhundert] |  |
 | mouth [esp. Irish] [sl.] [pej.] [sb. who talks too much, a secret leaker] | Schwätzer {m} [pej.] [jd. der schwätzt, schwatzt, Geheimnisse ausplaudert] |  |
2 Words: Others |
 | eyes-only {adj} [strictly confidential, top secret] | streng geheim [streng vertraulich] |  |
 | well-kept {adj} [secret] | wohlgehütet [Geheimnis] |  |
 | well-protected {adj} [secret etc.] | wohlgehütet |  |
2 Words: Verbs |
 | to conspire against sb./sth. [make secret plans] | sich gegen jdn./etw. zusammentun [konspirieren] |  |
 | to entrust sth. to sb. [money, a mission, a secret, etc.] | jdm. etw. anvertrauen [Geld, eine Mission, ein Geheimnis etc.] |  |
 | to share sth. with sb. [sth. "secret", without harming anyone; e.g. a recipe] | jdm. etw.Akk. verraten [etw. „Geheimes“, ohne jdm. zu schaden; z. B. ein Kochrezept] |  |
 | to vomit out [fig.] [words, secret] | ausspucken [ugs.] |  |
2 Words: Nouns |
 | jobs agent controller [secret service] | Führungsoffizier {m} [Geheimdienst] |  |
 | pol. arcane politics [treated as sg. or (less often) pl.] [less frequent than: secret politics] | Arkanpolitik {f} [veraltet] [Geheimpolitik] |  |
 | hist. Bavarian Illuminati {pl} [secret society] | Bayerische Illuminaten {pl} [Geheimbund] |  |
 | mil. black site [secret prison] | Geheimgefängnis {n} |  |
 | cover story [of a secret agent] | Legende {f} [eines Geheimagenten] |  |
 | hugger-mugger [rare] [secret] | Geheimnis {n} |  |
 | private key [secret key] | Geheimschlüssel {m} |  |
 | secret account [secret fund] | Geheimfonds {m} |  |
 | jobs sensitive position [involving work, duties, or information of a highly secret nature] | Geheimnisträgerstellung {f} [selten] [Posten mit Zugang zu Verschlusssachen] |  |
 | law mil. special team [police, military, secret service] | Sondereinheit {f} [Polizei, Militär, Geheimdienst] |  |
3 Words: Others |
 | hole-and-corner {adj} [coll.] [attr.] [kept secret] | heimlich |  |
 | I've got you. [coll.] [to discover one's secret, lie, crime, etc.] | Ich habe dich überführt. |  |
 | idiom under the rose {adv} [in secret, privately, sub rosa] | unter dem Siegel der Verschwiegenheit |  |
3 Words: Verbs |
 | to let on about sth. [betray a secret etc.] | etw.Akk. verraten |  |
3 Words: Nouns |
 | pol. voting by ballot [secret ballot] | geheime Wahl {f} |  |
 | mil. pol. world of intelligence [rare: intelligence world] [world of secret services] | Geheimdienstwelt {f} |  |
4 Words: Verbs |
 | to make no bones about sth. [no secret] [idiom] | kein Hehl aus etw.Dat. machen |  |
 | to make no bones of sth. [no secret] [less common than: ... about sth.] [idiom] | kein Hehl aus etw.Dat. machen |  |
 | to make no pretence of sth. [make no secret of sth.] [idiom] | keinen Hehl aus etw.Dat. machen [Redewendung] |  |
 | to spill the tea on sb./sth. [Am.] [slang] [fig.] [disclose (secret) information] | über jdn./etw. auspacken [ugs.] |  |
4 Words: Nouns |
 | snake in the grass [coll.] [pej.] [secret enemy] | geheimer Feind {m} |  |
5+ Words: Others |
 | idiom That will not go any further. [of a secret] | Das bleibt unter uns. |  |
Fiction (Literature and Film) |
 | lit. F Secret Window, Secret Garden [Stephen King] | Das heimliche Fenster, der heimliche Garten |  |
 | film F The Secret of NIMH / The Secret of N.I.M.H. [Don Bluth] | Mrs. Brisby und das Geheimnis von Nimh |  |