| No. | Term | Definition |
|---|---|---|
| 1. | Ace | Top performer; highly skilled. |
| 2. | Adept | Highly skilled; proficient. |
| 3. | Adviser | One who gives informed guidance. |
| 4. | Aficionado | Enthusiastic, knowledgeable devotee. |
| 5. | Analyst | Skilled interpreter of information. |
| 6. | Appraiser | Qualified evaluator of value. |
| 7. | Architect | Skilled designer of systems. |
| 8. | Artisan | Skilled craft worker. |
| 9. | Authority | Recognized source of knowledge. |
| 10. | Autodidact | Self-taught, knowledgeable person. |
| 11. | Brain | Very intelligent, capable person. |
| 12. | Bright mind | Clever, insightful person. |
| 13. | Cognoscente | Knowledgeable connoisseur. |
| 14. | Connoisseur | Discerning judge of quality. |
| 15. | Consultant | Professional adviser; specialist. |
| 16. | Counselor | One who advises thoughtfully. |
| 17. | Crack shot | Exceptionally accurate, skilled shooter. |
| 18. | Craftsperson | Skilled maker; artisan. |
| 19. | Crème de la crème | The very best of a group. |
| 20. | Crusader | Dedicated advocate with know-how. |
| 21. | Deviser | Skilled planner; inventor. |
| 22. | Diagnostician | Skilled at identifying problems. |
| 23. | Doer | Effective, capable achiever. |
| 24. | Doyen | Senior, respected authority. |
| 25. | Driver | One who gets results expertly. |
| 26. | Elder | Respected, experienced leader. |
| 27. | Engineer | Technical problem-solver; designer. |
| 28. | Erudite | Deeply learned; scholarly. |
| 29. | Evaluator | Skilled assessor of quality. |
| 30. | Examiner | Trained inspector; reviewer. |
| 31. | Exemplar | Model of excellence. |
| 32. | Fachmann | German: skilled professional. |
| 33. | Fact-finder | Skilled investigator of truth. |
| 34. | Fellow | Recognized member of a field. |
| 35. | Fixer | Person who solves tough problems. |
| 36. | Forensic specialist | Expert in investigative analysis. |
| 37. | Genius | Exceptionally intelligent, creative person. |
| 38. | Go-to person | Trusted, reliable specialist. |
| 39. | Grandmaster | Top-level master, especially in games. |
| 40. | Guide | One who leads with knowledge. |
| 41. | Hand | Skilled worker; experienced person. |
| 42. | High achiever | Consistently excellent performer. |
| 43. | Hotshot | Impressively skilled person. |
| 44. | Hotspur | Bold, capable, energetic person. |
| 45. | Informed source | Person with reliable knowledge. |
| 46. | Insider | Well-informed member of a group. |
| 47. | Instructor | Skilled teacher or trainer. |
| 48. | Intellectual | Highly educated thinker. |
| 49. | Interpreter | Skilled explainer of meaning. |
| 50. | Jawbreaker | Slang: formidable, skilled competitor. |
| 51. | Journeyperson | Qualified, trained trades worker. |
| 52. | Judge | Skilled evaluator; arbiter. |
| 53. | Key authority | Primary recognized specialist. |
| 54. | Know-all | Someone who knows a lot. |
| 55. | Know-how holder | Person with practical knowledge. |
| 56. | Knowledgeable one | Well-informed person. |
| 57. | Leader | One who directs with competence. |
| 58. | Learned person | Well-educated, knowledgeable individual. |
| 59. | Luminary | Inspiring leader; eminent figure. |
| 60. | Maestro | Master, especially in arts. |
| 61. | Master | Person of great skill. |
| 62. | Mastermind | Brilliant planner; leading thinker. |
| 63. | Maven | Trusted, knowledgeable enthusiast. |
| 64. | Mechanic | Skilled repairer; technician. |
| 65. | Mentor | Experienced guide and adviser. |
| 66. | Nerd | Highly knowledgeable enthusiast, informal. |
| 67. | Ninja | Informal: exceptionally skilled person. |
| 68. | Old hand | Very experienced person. |
| 69. | Operator | Skilled, effective practitioner. |
| 70. | Oracle | Wise source of answers. |
| 71. | Pathfinder | One who finds effective ways. |
| 72. | Perfectionist | Person demanding high standards. |
| 73. | Phenom | Remarkably talented person. |
| 74. | Pioneer | Leading innovator; trailblazer. |
| 75. | Pro | Highly skilled professional. |
| 76. | Prodigy | Exceptionally talented young person. |
| 77. | Professional | Trained, paid practitioner. |
| 78. | Professor | Academic authority; learned teacher. |
| 79. | Pundit | Recognized commentator; authority. |
| 80. | Raconteur | Skilled storyteller, knowledgeable. |
| 81. | Resource person | Helpful source of expertise. |
| 82. | Ringleader | Leading organizer; skilled instigator. |
| 83. | Sage | Wise, deeply experienced person. |
| 84. | Savant | Person with exceptional knowledge. |
| 85. | Scholar | Learned academic; researcher. |
| 86. | Seasoned veteran | Highly experienced practitioner. |
| 87. | Sharpshooter | Highly accurate, skilled performer. |
| 88. | Specialist | Focused expert in a field. |
| 89. | Star | Outstanding performer. |
| 90. | Strategist | Skilled planner of actions. |
| 91. | Subject-matter authority | Recognized field authority. |
| 92. | Technician | Skilled technical worker. |
| 93. | Thinker | Insightful, analytical mind. |
| 94. | Top gun | Best performer; ace. |
| 95. | Trailblazer | Innovative leader; pioneer. |
| 96. | Trainer | Skilled instructor and coach. |
| 97. | Troubleshooter | Skilled problem-solver. |
| 98. | Tutor | Personal teacher; guide. |
| 99. | Uber-skilled | Extremely skilled, informal. |
| 100. | Undisputed authority | Widely accepted top authority. |