| No. | Term | Definition |
|---|---|---|
| 1. | 221B | Holmes’s flat number. |
| 2. | A Study in Scarlet | First Holmes novel; origin mystery. |
| 3. | Abominable Bride | Victorian-era case, modern consequences. |
| 4. | Adler, Irene | The Woman; clever dominatrix adversary. |
| 5. | Baker Street | Holmes and Watson’s London address. |
| 6. | Baker Street Irregulars | Street kids aiding investigations. |
| 7. | Bart’s | St Bartholomew’s Hospital; Sherlock’s workplace. |
| 8. | Best Man Speech | John’s wedding speech; key revelations. |
| 9. | Black Lotus | Mycroft’s covert intelligence network. |
| 10. | Blowfish | Sherlock’s nickname for Anderson. |
| 11. | Blue Carbuncle | Gem theft case; Christmas tale. |
| 12. | Bohemian Scandal | Irene Adler photograph case. |
| 13. | Bonfire Night | Guy Fawkes; referenced in plots. |
| 14. | Brain Attic | Mind palace storage metaphor. |
| 15. | Bridge of Death | Reichenbach-style fatal confrontation. |
| 16. | Cab Driver | Taxi killer; “pink” case. |
| 17. | Cambrian Code | Secret code; Mycroft’s files. |
| 18. | Candle Wax | Forensic trace; common clue. |
| 19. | Canon | Original Doyle Holmes stories. |
| 20. | Casebook | Collection of Holmes adventures. |
| 21. | Chemistry Set | Sherlock’s experiments and tests. |
| 22. | Client | Person seeking Holmes’s help. |
| 23. | Clue Board | Pinned evidence and connections. |
| 24. | Cocaine Solution | Holmes’s stimulant in canon. |
| 25. | Cold Reading | Seeming insight from observation. |
| 26. | Consulting Criminal | Moriarty’s self-styled role. |
| 27. | Consulting Detective | Independent detective-for-hire title. |
| 28. | Coppers | Police; Scotland Yard slang. |
| 29. | Crown Jewels | Royal treasures; recurring stakes. |
| 30. | Culverton Smith | Serial killer; hospital philanthropist. |
| 31. | Deduction | Reasoning from observations to truth. |
| 32. | Deerstalker | Iconic hunting cap; Holmes symbol. |
| 33. | Diogenes Club | Mycroft’s silent gentlemen’s club. |
| 34. | Disguise | Holmes’s frequent undercover tactic. |
| 35. | Doctor Watson | Holmes’s friend, doctor, narrator. |
| 36. | Doyle, Arthur Conan | Creator of Sherlock Holmes. |
| 37. | Dr. John Watson | Army doctor; Holmes’s flatmate. |
| 38. | Eurus Holmes | Sherlock’s brilliant younger sister. |
| 39. | Evidence Bag | Container for collected clues. |
| 40. | Forensics | Scientific analysis for investigations. |
| 41. | Freddie Lounds | Tabloid journalist; sensational coverage. |
| 42. | Garrideb | Rare Watson injury reference. |
| 43. | Gatiss, Mark | BBC co-creator; plays Mycroft. |
| 44. | Genius | Sherlock’s exceptional intellect. |
| 45. | Gladstone | Mycroft’s beloved bulldog in canon. |
| 46. | Golem | Nickname for a hulking criminal. |
| 47. | Graham, Lestrade | Scotland Yard inspector ally. |
| 48. | Great Game | Moriarty’s criminal contest with Sherlock. |
| 49. | Hansom Cab | Victorian taxi; classic London transport. |
| 50. | Harker, Molly | John’s wife; Mary Morstan. |
| 51. | Hound of the Baskervilles | Legendary moor mystery; famous case. |
| 52. | Hounds | Dogs used for tracking clues. |
| 53. | Hudson, Mrs. | Landlady at 221B Baker Street. |
| 54. | Inference | Conclusion drawn from evidence. |
| 55. | Inspector Lestrade | Yard detective; respects Sherlock. |
| 56. | Irregulars | Holmes’s network of street scouts. |
| 57. | Johnlock | Fan ship: John and Sherlock. |
| 58. | Journal of Watson | Watson’s case-writing habit. |
| 59. | Jump, The | Sherlock’s rooftop fall ruse. |
| 60. | Key to a Cipher | Code-breaking essential information. |
| 61. | King’s Cross | London station; meeting point. |
| 62. | Lack of a Heart | Sherlock’s claimed emotional detachment. |
| 63. | Lazarus Effect | Apparent return from death. |
| 64. | Lesttrade (missp.) | Common misspelling of Lestrade. |
| 65. | London | Primary setting; foggy metropolis. |
| 66. | Magnussen, Charles | Blackmailer; “pressure points” villain. |
| 67. | Mind Palace | Memory technique; mental visualization space. |
| 68. | Molly Hooper | Pathologist; Sherlock’s ally. |
| 69. | Moriarty, Jim | Holmes’s arch-nemesis mastermind. |
| 70. | Morstan, Mary | John’s wife; secretive past. |
| 71. | Mycroft Holmes | Sherlock’s powerful, smarter brother. |
| 72. | Napoleon of Crime | Moriarty’s classic epithet. |
| 73. | Network | Informants and contacts for cases. |
| 74. | Observation | Noticing details others miss. |
| 75. | Ode to a Nightingale | Quoted literature; Holmesian flavor. |
| 76. | Opium Den | Victorian vice; shady locale. |
| 77. | Order of the Garter | British honor; aristocratic links. |
| 78. | Panic Room | Secure room; used in standoffs. |
| 79. | Pastiche | New Holmes-style story by others. |
| 80. | Patch | Moriarty’s rooftop “I.O.U.”. |
| 81. | Perpetrator | Person who committed the crime. |
| 82. | Pink Lady | “Pink” clue; cabbie’s lure. |
| 83. | Pipe | Holmes’s iconic smoking accessory. |
| 84. | Poison Pill | Fatal dose; murder method. |
| 85. | Profiler | Analyzes behavior to identify suspects. |
| 86. | Rache | German “revenge”; mistaken clue. |
| 87. | Reichenbach Fall | Holmes’s staged death event. |
| 88. | Ripperology | Jack the Ripper theories and lore. |
| 89. | Scandal in Belgravia | BBC episode with Irene Adler. |
| 90. | Scotland Yard | London police headquarters. |
| 91. | Script | Watson’s written case accounts. |
| 92. | Sherrinford | Rumored Holmes sibling; fan lore. |
| 93. | Sign of Four | Second Holmes novel; treasure plot. |
| 94. | Smoking Jacket | Holmes’s at-home attire. |
| 95. | Solving a Case | Identifying culprit and motives. |
| 96. | Spectacles | Disguise prop; alters appearance. |
| 97. | Strand Magazine | Original Holmes publication venue. |
| 98. | The Final Problem | Moriarty showdown; canonical climax. |
| 99. | The Game is Afoot | Call to begin pursuit. |
| 100. | The Woman | Holmes’s name for Irene Adler. |