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100 Best Synonyms for “Corroborate”

October 3, 2026

100 Best Synonyms for

No. Item Definition
1. accord with agree with or support
2. add weight to increase support for
3. affirm state or show as true
4. agree with match or support
5. align with agree with the evidence
6. allege claim without full proof
7. argue for support as evidence
8. assert state firmly as true
9. attest to serve as evidence of
10. authenticate prove genuine or true
11. aver state confidently as true
12. back the claim support the claim
13. back up provide supporting evidence for
14. be borne out by be supported by evidence
15. be confirmed by be supported by evidence
16. be consistent with not conflict with evidence
17. be in line with match or support
18. bear out show to be true
19. bear witness to provide evidence for
20. bolster strengthen with support
21. buttress strengthen with support
22. certify officially confirm as true
23. check against compare for confirmation
24. check out prove true on inspection
25. check true prove accurate
26. chime with accord well with
27. cohere with fit together logically
28. compare with examine for agreement
29. comport with be consistent with
30. concur with agree with or support
31. confirm show to be true
32. confirmatory serving to confirm something
33. consort with be in agreement with
34. contend argue as true
35. count in favor of support the case for
36. cross-check verify by comparison
37. demonstrate clearly show or prove
38. disclose make known or evident
39. document support with records or evidence
40. double-check verify again carefully
41. dovetail with fit together neatly
42. endorse publicly support or approve
43. establish show firmly to be true
44. evidence provide proof for
45. evince show clearly
46. fit be consistent with
47. fortify strengthen with evidence
48. give credence to make more believable
49. give evidence for provide proof for
50. give weight to add persuasive support
51. hold true remain accurate or valid
52. hold up remain convincing or valid
53. indicate show or suggest clearly
54. jibe with agree with
55. justify show to be reasonable or true
56. lend credence to make more believable
57. lend support to give support to
58. lend weight to make more believable
59. line up with match or agree with
60. maintain continue to state as true
61. manifest display clearly
62. match correspond with evidence
63. mesh with work consistently with
64. militate for support an argument
65. point to suggest or support
66. prop up support or sustain
67. prove demonstrate truth or validity
68. ratify formally confirm or approve
69. reconcile with show agreement with
70. redound to contribute support to
71. reflect show or indicate
72. reinforce make stronger with support
73. reveal make evident or clear
74. ring true seem truthful and consistent
75. run true prove accurate in practice
76. shore up strengthen or support
77. show make clear or prove
78. signal give evidence of
79. speak for serve as evidence for
80. speak to indicate or support
81. square with be consistent with
82. stack up against compare favorably with evidence
83. stand up remain valid under scrutiny
84. substantiate support with evidence
85. support back up with evidence
86. sustain support as valid
87. swear to state as true
88. sync with match or agree with
89. tally up with match the facts
90. tally with match or agree with
91. testify to serve as proof of
92. track with be consistent with
93. underpin support from below or basis
94. uphold maintain as valid or true
95. validate confirm as sound or true
96. verify check and prove true
97. vouch for confirm reliability or truth
98. warrant justify as true or reasonable
99. weigh in favor of support the case for
100. witness provide evidence of

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