| No. | Item | Definition |
|---|---|---|
| 1. | analyze | study in detail |
| 2. | appraise | assess worth or quality |
| 3. | ascertain | find out for certain |
| 4. | assess | evaluate or judge |
| 5. | audit | examine records systematically |
| 6. | benchmark | measure against a standard |
| 7. | break down | analyze into parts |
| 8. | chase down | pursue until found |
| 9. | check | examine to verify |
| 10. | comb through | search very carefully |
| 11. | confirm | establish as true |
| 12. | corroborate | support with confirming evidence |
| 13. | cross-examine | question closely and critically |
| 14. | debrief | question after an event |
| 15. | delve into | investigate deeply |
| 16. | determine | establish by investigation |
| 17. | diagnose | identify by examination |
| 18. | dig into | investigate deeply |
| 19. | discover | find out or reveal |
| 20. | dissect | analyze in detail |
| 21. | drill into | examine deeply |
| 22. | elicit | draw out information |
| 23. | estimate | judge approximately |
| 24. | evaluate | judge quality or value |
| 25. | examine | inspect closely and carefully |
| 26. | experiment with | try out for results |
| 27. | explore | look into something thoroughly |
| 28. | fact-check | verify factual accuracy |
| 29. | feel out | test attitudes cautiously |
| 30. | ferret out | discover by searching |
| 31. | field-test | test in real conditions |
| 32. | find out | learn by investigation |
| 33. | follow up | investigate further afterward |
| 34. | gauge | measure or estimate |
| 35. | go into | examine in detail |
| 36. | go over | review carefully |
| 37. | go through | examine or review |
| 38. | grill | question intensely |
| 39. | home in on | focus directly on |
| 40. | hunt down | find after searching |
| 41. | identify | establish what something is |
| 42. | inquire about | ask for information |
| 43. | inquire into | investigate or look into |
| 44. | inspect | look at closely |
| 45. | interrogate | question formally or intensely |
| 46. | interview | question for information |
| 47. | investigate | examine carefully to discover facts |
| 48. | look beneath | examine underlying aspects |
| 49. | look into | investigate further |
| 50. | look over | inspect briefly |
| 51. | look through | examine by reading or searching |
| 52. | make inquiries | seek information formally |
| 53. | measure | determine size or extent |
| 54. | microscope | examine with extreme care |
| 55. | mine | extract information from |
| 56. | monitor | observe and check regularly |
| 57. | nose into | interfere by investigating |
| 58. | observe | notice and examine |
| 59. | parse | analyze closely |
| 60. | pilot | test on a small scale |
| 61. | plumb | examine deeply |
| 62. | poke into | investigate intrusively |
| 63. | pry into | inquire intrusively |
| 64. | pursue | follow up or investigate |
| 65. | put to the test | test thoroughly |
| 66. | put under the microscope | examine very closely |
| 67. | query | ask about or examine |
| 68. | question | ask to discover information |
| 69. | quiz | question briefly or test |
| 70. | read up on | study to learn more |
| 71. | reconnoiter | survey for information |
| 72. | reexamine | examine again |
| 73. | research | study systematically for information |
| 74. | review | examine again or assess |
| 75. | road-test | test performance in use |
| 76. | run down | track and investigate |
| 77. | sample | test a small amount |
| 78. | screen | test or examine for suitability |
| 79. | scrutinize | examine very carefully |
| 80. | search | look through carefully |
| 81. | snoop into | investigate secretly or nosily |
| 82. | sound the depths | explore thoroughly |
| 83. | study | examine closely to learn |
| 84. | survey | examine broadly or question |
| 85. | take apart | analyze piece by piece |
| 86. | take soundings | test opinions or conditions |
| 87. | tease out | draw out by inquiry |
| 88. | test | check by trial or examination |
| 89. | trace | track by investigation |
| 90. | trial | test in practice |
| 91. | troubleshoot | investigate and solve problems |
| 92. | try out | test to see performance |
| 93. | uncover | discover something hidden |
| 94. | unpack | analyze and explain |
| 95. | validate | confirm as sound |
| 96. | verify | confirm truth or accuracy |
| 97. | vet | examine for approval |
| 98. | watch | observe closely |
| 99. | weigh | consider carefully |
| 100. | zero in on | focus closely on |