| No. | Item | Definition |
|---|---|---|
| 1. | ascertain | find out for certain |
| 2. | backtrack | return over the same path |
| 3. | betray | reveal unintentionally |
| 4. | bring to light | reveal or uncover |
| 5. | chart | map or record |
| 6. | chase | run after or pursue |
| 7. | chronicle | record over time |
| 8. | comb through | search very thoroughly |
| 9. | confirm | show to be true |
| 10. | corroborate | support with evidence |
| 11. | designate | identify for a purpose |
| 12. | detect | discover the presence of |
| 13. | determine | find out exactly |
| 14. | dig up | discover after effort |
| 15. | discover | find out or uncover |
| 16. | document | record with details |
| 17. | engrave | carve into a surface |
| 18. | establish | prove or determine |
| 19. | etch | cut or carve lightly |
| 20. | evidence | show signs of |
| 21. | examine | study carefully |
| 22. | explore | look into or examine |
| 23. | ferret out | discover by persistent searching |
| 24. | figure out | discover by reasoning |
| 25. | file | place on record |
| 26. | find | discover or locate |
| 27. | follow | go after or monitor |
| 28. | go over | examine carefully |
| 29. | go through | examine in detail |
| 30. | hint at | suggest indirectly |
| 31. | home in on | move toward a target |
| 32. | hunt | search for and follow |
| 33. | identify | recognize or establish |
| 34. | imprint | leave a lasting mark |
| 35. | incise | cut into a surface |
| 36. | indicate | point to or suggest |
| 37. | inscribe | write or carve on |
| 38. | inspect | look at closely |
| 39. | investigate | look into systematically |
| 40. | leave a mark | make a visible sign |
| 41. | leave a sign | create evidence or indication |
| 42. | leave a trail | create signs behind |
| 43. | leave evidence | provide proof of presence |
| 44. | leave footprints | make tracks while walking |
| 45. | leave tracks | create marks of passage |
| 46. | locate | find the position of |
| 47. | log | record in sequence |
| 48. | look into | investigate or examine |
| 49. | manifest | show plainly |
| 50. | map | chart or plot |
| 51. | mark | leave a visible sign |
| 52. | monitor | watch and track closely |
| 53. | nail down | determine exactly |
| 54. | name | identify specifically |
| 55. | narrow down | reduce possible options |
| 56. | note | write down briefly |
| 57. | piece together | reconstruct from clues |
| 58. | pinpoint | locate exactly |
| 59. | plot | mark points or course |
| 60. | leave a visible mark | |
| 61. | probe | investigate deeply |
| 62. | pursue | go after persistently |
| 63. | rake through | search through thoroughly |
| 64. | reconstruct | build again from evidence |
| 65. | record | set down information |
| 66. | register | record officially |
| 67. | retrace | go back over again |
| 68. | root out | find and expose |
| 69. | run down | locate after pursuit |
| 70. | scan | examine quickly for details |
| 71. | score | scratch or cut lightly |
| 72. | scratch | mark with a sharp point |
| 73. | search | look for carefully |
| 74. | seek | try to find |
| 75. | shadow | follow closely and secretly |
| 76. | spot | notice or detect |
| 77. | stalk | follow stealthily |
| 78. | survey | observe and inspect carefully |
| 79. | tag | mark or label |
| 80. | tail | follow behind someone |
| 81. | track | follow signs or progress |
| 82. | trail | follow a path or clues |
| 83. | uncover | reveal by searching |
| 84. | unearth | find by searching |
| 85. | unmask | reveal the truth about |
| 86. | unravel | figure out gradually |
| 87. | untangle | work out by analysis |
| 88. | validate | confirm as true |
| 89. | verify | confirm as true |
| 90. | view | examine or inspect |
| 91. | watch | observe closely |
| 92. | weed out | find and remove |
| 93. | winkle out | extract by persistent effort |
| 94. | witness | see happen directly |
| 95. | work out | figure out or determine |
| 96. | write down | record in writing |
| 97. | zero in on | focus closely on |
| 98. | zigzag after | follow in a winding way |
| 99. | zone in on | focus closely on |
| 100. | zoom in on | focus tightly on |