| No. | Item | Definition |
|---|---|---|
| 1. | accordant | agreeing or corresponding |
| 2. | agreeing | matching or being consistent |
| 3. | akin | similar in nature or character |
| 4. | alike | resembling each other closely |
| 5. | allied | closely related in kind |
| 6. | almost identical | very nearly the same |
| 7. | analogous | similar in relevant respects |
| 8. | approximate | close but not exact |
| 9. | approximately the same | roughly not different |
| 10. | approximating | coming close to resembling |
| 11. | basically the same | essentially not different |
| 12. | birds of a feather | people alike in nature |
| 13. | close | nearly alike or matching |
| 14. | coequal | equal with another |
| 15. | cognate | related in origin or nature |
| 16. | commensurate | corresponding in size or degree |
| 17. | comparable | able to be likened |
| 18. | congruent | agreeing or matching closely |
| 19. | consistent | showing the same pattern |
| 20. | coordinate | equal in rank or importance |
| 21. | correlative | mutually related or corresponding |
| 22. | corresponding | matching in position or character |
| 23. | dead ringer | almost exact match |
| 24. | duplicate | exactly copied or matching |
| 25. | equal | the same in value |
| 26. | equivalent | equal or comparable in effect |
| 27. | essentially the same | same in basic nature |
| 28. | exchangeable | able to be swapped |
| 29. | fungible | interchangeable with equivalents |
| 30. | homogeneous | uniform in composition or kind |
| 31. | homogenous | uniform in kind or character |
| 32. | homologous | corresponding in structure or origin |
| 33. | identical | exactly the same |
| 34. | in accord | consistent with something |
| 35. | in agreement | matching in opinion or form |
| 36. | indistinguishable | impossible to tell apart |
| 37. | interchangeable | usable in place of another |
| 38. | interrelated | related to one another |
| 39. | isogenous | having the same origin |
| 40. | isomorphic | having the same structure |
| 41. | kindred | alike in character or spirit |
| 42. | largely the same | mostly not different |
| 43. | like | having resemblance to something |
| 44. | look-alike | closely resembling in appearance |
| 45. | matching | going together by resemblance |
| 46. | mirror-image | matching in reversed form |
| 47. | mirrored | reflected or matched closely |
| 48. | much alike | very similar |
| 49. | much the same | nearly identical |
| 50. | near-equivalent | almost equal in meaning or value |
| 51. | near-identical | almost exactly the same |
| 52. | nearly identical | almost exactly alike |
| 53. | not dissimilar | not very different |
| 54. | not unlike | having noticeable resemblance |
| 55. | of a kind | alike in type |
| 56. | of like kind | belonging to a comparable type |
| 57. | of the same ilk | of the same kind |
| 58. | of the same kind | sharing the same type |
| 59. | of the same nature | alike in essential character |
| 60. | of the same sort | belonging to one sort |
| 61. | of the same stripe | of the same character |
| 62. | of the same type | belonging to one type |
| 63. | on a par | equal in status or quality |
| 64. | on par | equal or comparable in level |
| 65. | paired | matched as a pair |
| 66. | parallel | corresponding in key ways |
| 67. | parallelled | matched or corresponded with |
| 68. | practically identical | almost exactly the same |
| 69. | proportional | corresponding in ratio |
| 70. | proportionate | corresponding in amount or scale |
| 71. | quasi-equivalent | nearly equal in effect |
| 72. | quasi-identical | almost identical |
| 73. | related | connected by likeness or association |
| 74. | resemblant | bearing a resemblance |
| 75. | resembling | looking or seeming like another |
| 76. | roughly the same | about equal or alike |
| 77. | same | not different in kind |
| 78. | samey | too much alike |
| 79. | sound-alike | closely resembling in sound |
| 80. | spitting image | very close likeness |
| 81. | standardized | made uniform or consistent |
| 82. | substantially identical | largely the same |
| 83. | substitutable | able to replace another |
| 84. | symmetric | having matching opposite parts |
| 85. | symmetrical | balanced with matching parts |
| 86. | tantamount | equivalent in value or effect |
| 87. | twin | closely matching another |
| 88. | twinlike | closely resembling a twin |
| 89. | two of a kind | very alike in character |
| 90. | unchanging | staying the same |
| 91. | undifferentiated | not clearly different |
| 92. | undistinguishable | impossible to tell apart |
| 93. | uniform | not varying in form |
| 94. | unvaried | showing little or no difference |
| 95. | unvarying | remaining the same throughout |
| 96. | very much alike | strongly similar in nature |
| 97. | virtually identical | effectively the same |
| 98. | virtually the same | almost exactly alike |
| 99. | well-matched | similar or fitting together well |
| 100. | xeroxed | copied so closely as identical |
