Related by context. Frequent words. (Click for all words.) 64 cryptographer 55 cryptology 54 linguist 53 cryptographers 48 mathematician 46 Linguist 46 counterintelligence 46 super sleuth 45 cartographer 45 jewel thief 45 detective 45 mapmaker 44 amateur sleuth 44 spymaster 44 novelist 44 mathematical genius 44 art restorer 44 sleuth 43 colonel 43 bacteriologist 43 parapsychology 43 forger 43 treasure hunter 43 assassin 43 cipher 43 painter sculptor 42 Espionage 42 autodidact 42 covert ops 42 sleuthing 42 homicide detective 42 Navy diver 41 ethnographer 41 cryptography 41 Mata Hari 41 scholar 41 polymath 41 Secret Service Agent 41 David Rasche 41 bookbinder 41 physicist 41 CIA operative 41 fabulist 41 FBI profiler 41 deciphering 41 Counter Intelligence 40 Gabriel Macht 40 decrypting 40 Niels Bohr 40 linguistics 40 Cryptography 40 biblical scholar 40 lieutenant 40 con artist 40 Air Force colonel 40 nobleman 40 Enigma 40 spycraft 39 decrypt 39 debunker 39 spy 39 undercover operative 39 lieutenant colonel 39 seaman 39 computer programmer 39 retired lieutenant colonel 39 scientist 39 gunrunner 39 Mossad agent 39 superspy 39 ROTC cadet 39 Mathematician 39 assassinate Hitler 39 MI6 39 criminal profiler 39 aviator 39 spy thriller 39 David Krumholtz 39 interrogator 39 blackmailer 39 adventurer 39 hostage negotiator 38 submariner 38 spymasters 38 historian 38 psychoanalyst 38 counterespionage 38 espionage 38 Badge Dale 38 philology 38 romance novelist 38 Evelyn Salt 38 Robert Hanssen 38 Ciaran Hinds 38 typist 38 Daniel Auteuil 38 paranormal investigator 38 swordsman 38 Krumholtz 38 Navy Seal 38 hacker