| No. | Item | Definition |
|---|---|---|
| 1. | about | nearly; around |
| 2. | abt. | abbreviation meaning about |
| 3. | almost | very nearly; not quite |
| 4. | appraise | estimate worth or quality |
| 5. | approx | informal abbreviation for approximate |
| 6. | around | approximately; about |
| 7. | assess | estimate value, size, or quality |
| 8. | assume | take as likely without proof |
| 9. | back-of-the-envelope | quick and roughly calculated |
| 10. | ballpark | roughly estimated or approximate |
| 11. | basically | in the main; roughly |
| 12. | bordering on | almost being something |
| 13. | broad | general rather than exact |
| 14. | broadly speaking | in general, not exactly |
| 15. | c. | abbreviation meaning circa |
| 16. | ca. | abbreviation for circa |
| 17. | circa | about, especially for dates |
| 18. | close | nearly correct or exact |
| 19. | comparable | similar enough to compare |
| 20. | conjecture | form an uncertain estimate |
| 21. | diagrammatic | shown in simplified outline |
| 22. | draft | preliminary and not exact |
| 23. | educated guess | informed but inexact estimate |
| 24. | est. | abbreviation meaning estimated |
| 25. | estimate | judge roughly or calculate |
| 26. | estimated | judged without exact measurement |
| 27. | estimation | rough calculation or judgment |
| 28. | evaluate | estimate or determine value |
| 29. | extrapolate | estimate beyond known data |
| 30. | fair estimate | a reasonably accurate estimate |
| 31. | figure at | estimate at a number |
| 32. | fix at | determine or estimate at value |
| 33. | forecast | estimate future conditions |
| 34. | fundamentally | in basic approximate terms |
| 35. | gauge | estimate or judge roughly |
| 36. | general | not detailed or exact |
| 37. | generally | usually or broadly |
| 38. | give or take | allowing a small difference |
| 39. | guess | estimate without certainty |
| 40. | guesstimate | a guess-based estimate |
| 41. | hazard | offer a risky estimate |
| 42. | imprecise | not exact or precise |
| 43. | in the neighborhood of | approximately near an amount |
| 44. | in the region of | approximately around an amount |
| 45. | indicative | showing roughly, not exactly |
| 46. | inexact | not completely accurate |
| 47. | infer | conclude from available evidence |
| 48. | interpolate | estimate between known values |
| 49. | judge | form an estimate or opinion |
| 50. | largely | mostly; to a great extent |
| 51. | loose | not strictly exact |
| 52. | loosely speaking | speaking without exact precision |
| 53. | mainly | mostly; for the most part |
| 54. | makeshift | rough but temporarily useful |
| 55. | more or less | approximately; nearly |
| 56. | mostly | for the most part |
| 57. | near | close to the actual amount |
| 58. | nearly | almost, but not exactly |
| 59. | notional | based on assumption, not exactness |
| 60. | on the order of | approximately of that size |
| 61. | or so | approximately; more or less |
| 62. | outline | give a rough description |
| 63. | peg at | estimate at a specific amount |
| 64. | place at | estimate as being a value |
| 65. | predict | estimate what will happen |
| 66. | preliminary | done before final accuracy |
| 67. | presume | assume based on probability |
| 68. | project | estimate future results |
| 69. | provisional | temporary and subject to change |
| 70. | put at | estimate as a figure |
| 71. | quantify | estimate or express numerically |
| 72. | quick-and-dirty | fast, rough, and imperfect |
| 73. | rate | estimate or rank by value |
| 74. | raw | unrefined and approximate |
| 75. | reckon | calculate or judge roughly |
| 76. | rough | not exact or detailed |
| 77. | roughly | not exactly; about |
| 78. | rule-of-thumb | roughly practical, not exact |
| 79. | sample | estimate from selected examples |
| 80. | size up | estimate or assess informally |
| 81. | sketchy | roughly outlined, not detailed |
| 82. | some | about; approximately |
| 83. | speculate | guess without firm evidence |
| 84. | suppose | assume as likely |
| 85. | surmise | guess from limited evidence |
| 86. | survey | assess broadly or roughly |
| 87. | tending toward | moving or leaning toward |
| 88. | tentative | not final or certain |
| 89. | thumbnail | brief and approximate |
| 90. | typical | roughly representative of a type |
| 91. | undeveloped | not fully detailed or refined |
| 92. | unfinished | not final or fully exact |
| 93. | unrefined | not made precise or polished |
| 94. | upwards of | more than approximately |
| 95. | value | estimate monetary worth |
| 96. | venture | offer cautiously or uncertainly |
| 97. | verging on | approaching closely |
| 98. | virtually | almost entirely; nearly |
| 99. | weigh | consider and estimate importance |
| 100. | working | usable but not final |
