| No. | Item | Definition |
|---|---|---|
| 1. | assessment | evaluation of quality or fit |
| 2. | bar | prevent entry or inclusion |
| 3. | bleach | remove color or stains |
| 4. | block | stop from passing through |
| 5. | catch | capture while passing |
| 6. | categorization | sorting into categories |
| 7. | categorize | sort into groups |
| 8. | centrifuge | separate by spinning |
| 9. | clarification | removal of cloudiness or confusion |
| 10. | clarify | make clear by removing particles |
| 11. | classification | grouping by shared traits |
| 12. | classify | arrange by type |
| 13. | cleanse | remove contaminants from |
| 14. | constrain | limit or restrict |
| 15. | cull | selectively remove unwanted items |
| 16. | curb | restrain or limit |
| 17. | deacidify | remove acid from |
| 18. | dechlorinate | remove chlorine from |
| 19. | decontaminate | remove harmful substances from |
| 20. | degas | remove dissolved gas from |
| 21. | deionize | remove ions from |
| 22. | demineralize | remove minerals from |
| 23. | deoil | remove oil from |
| 24. | desalt | remove salt from |
| 25. | desulfurize | remove sulfur from |
| 26. | dewater | remove water from |
| 27. | dilute | make less concentrated |
| 28. | disqualify | exclude for failing standards |
| 29. | distill | purify by selective extraction |
| 30. | eliminate | get rid of |
| 31. | elimination | complete removal |
| 32. | evaluation | judgment of value or suitability |
| 33. | examination | careful inspection or testing |
| 34. | excludable | able to be left out |
| 35. | exclude | keep out |
| 36. | exclusion | keeping something out |
| 37. | extract | draw out selected material |
| 38. | flush | wash out unwanted matter |
| 39. | fractionate | separate into components |
| 40. | handpick | choose very carefully |
| 41. | hold back | keep from passing through |
| 42. | inspection | close examination |
| 43. | intercept | stop before reaching destination |
| 44. | isolate | separate from others |
| 45. | isolation | separation from others |
| 46. | keep out | prevent from passing through |
| 47. | knock out | remove from consideration |
| 48. | limit | restrict amount or scope |
| 49. | narrow | limit the range |
| 50. | omit | leave out |
| 51. | pass over | skip or leave out |
| 52. | prune | cut away unwanted parts |
| 53. | purge | remove unwanted contents |
| 54. | purifiable | able to be purified |
| 55. | purification | process of removing impurities |
| 56. | purified | made free of impurities |
| 57. | purify | remove impurities from |
| 58. | put through a screen | separate using a screen |
| 59. | put through a sieve | separate using a sieve |
| 60. | put through a strainer | separate using a strainer |
| 61. | qualify | meet required standards |
| 62. | refine | make cleaner or purer |
| 63. | refinement | process of making purer |
| 64. | reject | refuse to accept |
| 65. | rejection | refusal to accept |
| 66. | removal | act of taking away |
| 67. | remove | take away from a mixture |
| 68. | restrict | keep within bounds |
| 69. | retain | hold back |
| 70. | review | assess before allowing through |
| 71. | reviewing | checking before approval |
| 72. | sanitize | make hygienically clean |
| 73. | screen | separate out unwanted material |
| 74. | screened | checked or filtered |
| 75. | screening | process of filtering or checking |
| 76. | segregation | separation into distinct groups |
| 77. | select | choose from a set |
| 78. | selection | choosing from a group |
| 79. | separate | divide wanted from unwanted |
| 80. | separation | division into distinct parts |
| 81. | sift | separate by passing through |
| 82. | sifting | process of separating fine particles |
| 83. | skim | remove from the surface |
| 84. | sort | separate into categories |
| 85. | sorting | arranging into categories |
| 86. | sterilize | remove all microorganisms from |
| 87. | strain | remove solids from liquid |
| 88. | strained | passed through a strainer |
| 89. | straining | process of passing through mesh |
| 90. | suppress | prevent expression or spread |
| 91. | thin | reduce by removing some |
| 92. | trap | catch and hold back |
| 93. | triage | prioritize by urgency |
| 94. | vet | examine for suitability |
| 95. | vetted | carefully checked |
| 96. | vetting | careful checking for suitability |
| 97. | wash | clean by removing dirt |
| 98. | weed out | remove undesirable items |
| 99. | weed through | sort carefully through |
| 100. | winnow | separate useful from useless |
