| No. | Item | Definition |
|---|---|---|
| 1. | A hundred percent | Completely; totally. |
| 2. | All right | Okay; yes. |
| 3. | All the way | Completely; fully. |
| 4. | As a matter of fact | Actually; indeed. |
| 5. | As sure as day | Completely certain. |
| 6. | Bank on it | Rely on it; be sure. |
| 7. | Be assured | Be confident; it’s certain. |
| 8. | Bet on it | Be sure it will happen. |
| 9. | By all means | Certainly; go ahead. |
| 10. | Consider it done | I will do it. |
| 11. | Count on it | Be sure of it. |
| 12. | Dead certain | Completely certain. |
| 13. | Dead sure | Completely sure. |
| 14. | Don’t doubt it | Be sure; it’s true. |
| 15. | Don’t question it | Accept it as certain. |
| 16. | Fine by me | That is acceptable. |
| 17. | For real | Truly; genuinely. |
| 18. | For sure | Certainly; without doubt. |
| 19. | From start to finish | Completely; entirely. |
| 20. | From top to bottom | Completely; entirely. |
| 21. | Got it | Understood; yes. |
| 22. | Honestly, yes | A sincere yes. |
| 23. | I agree | I share your view. |
| 24. | I assure you | I state with certainty. |
| 25. | I promise | I give my assurance. |
| 26. | I swear | I strongly affirm. |
| 27. | I’m in | I agree to join. |
| 28. | I’m on board | I agree to participate. |
| 29. | In all honesty | Honestly; truly. |
| 30. | In every way | Completely; in all respects. |
| 31. | In fact | Actually; indeed. |
| 32. | In no uncertain terms | Very clearly and firmly. |
| 33. | In truth | Truly; indeed. |
| 34. | It’s a done deal | It is finalized. |
| 35. | It’s a lock | It is certain. |
| 36. | It’s a sure thing | It is certain. |
| 37. | It’s beyond a doubt | It is certain. |
| 38. | It’s beyond doubt | It cannot be doubted. |
| 39. | It’s certain | It is sure. |
| 40. | It’s confirmed | It is verified. |
| 41. | It’s decided | It is determined. |
| 42. | It’s definite | It is decided. |
| 43. | It’s for certain | It is definitely true. |
| 44. | It’s not in doubt | It is certain. |
| 45. | It’s not negotiable | It cannot be changed. |
| 46. | It’s not up for debate | It’s not disputable. |
| 47. | It’s official | Formally confirmed. |
| 48. | It’s settled | It is decided. |
| 49. | It’s true | It is correct. |
| 50. | Make no mistake | Be certain; don’t doubt. |
| 51. | Mark my words | Believe me; it will happen. |
| 52. | Most certainly | Very certainly. |
| 53. | Most definitely | Very definitely. |
| 54. | No doubt | Certainly; unquestionably. |
| 55. | No ifs, ands, or buts | No exceptions; definitely. |
| 56. | No joke | Seriously; truly. |
| 57. | No kidding | Seriously; truly. |
| 58. | No question | There is no doubt. |
| 59. | No two ways about it | No alternative; certainly. |
| 60. | Of course | As expected; surely yes. |
| 61. | One hundred percent | Completely; totally. |
| 62. | Rest assured | Be confident; it’s certain. |
| 63. | Sounds good | That seems acceptable. |
| 64. | Sure as anything | Completely certain. |
| 65. | Sure enough | Certainly; as expected. |
| 66. | Sure thing | Yes; gladly and certainly. |
| 67. | Take it to the bank | It is certainly true. |
| 68. | That’s a done deal | That is finalized. |
| 69. | That’s a fact | That is true. |
| 70. | That’s a sure thing | That is certain. |
| 71. | That’s beyond doubt | That cannot be doubted. |
| 72. | That’s certain | That is sure. |
| 73. | That’s definite | That is decided. |
| 74. | That’s for sure | That is certain. |
| 75. | That’s not in doubt | That is certain. |
| 76. | That’s not up for debate | That’s not disputable. |
| 77. | That’s right | That is correct. |
| 78. | That’s settled | That is decided. |
| 79. | That’s true | That is correct. |
| 80. | Through and through | Completely; entirely. |
| 81. | To be sure | Certainly; indeed. |
| 82. | To tell the truth | Honestly; in truth. |
| 83. | Uh-huh | Yes. |
| 84. | Without a doubt | With complete certainty. |
| 85. | Without question | With no doubt at all. |
| 86. | Works for me | That is acceptable to me. |
| 87. | Yes, certainly | A certain yes. |
| 88. | Yes, definitely | A firm yes. |
| 89. | Yes, for sure | A confident yes. |
| 90. | Yes, indeed | Yes; certainly. |
| 91. | Yes, no doubt | A sure yes. |
| 92. | Yes, of course | An expected yes. |
| 93. | Yes, without a doubt | A doubtless yes. |
| 94. | Yes, you bet | An emphatic yes. |
| 95. | Yes, you can count on it | A reliable yes. |
| 96. | You bet | Definitely yes. |
| 97. | You can bet on it | It is certain. |
| 98. | You can count on it | It is certain. |
| 99. | You can take that to the bank | It is unquestionably true. |
| 100. | You have my word | I promise; certainly. |