| No. | Item | Definition |
|---|---|---|
| 1. | 1st | written form of first |
| 2. | act one | the opening act |
| 3. | advent | the arrival or beginning |
| 4. | ahead | in front or before |
| 5. | alpha | the beginning or first |
| 6. | anterior | situated before or earlier |
| 7. | appearance | first showing or arrival |
| 8. | at the outset | at the beginning |
| 9. | at the start | at the beginning |
| 10. | before | earlier in time or order |
| 11. | beforehand | in advance or earlier |
| 12. | beginning | the starting part |
| 13. | best | first in quality or rank |
| 14. | birth | the beginning of existence |
| 15. | chapter one | the opening chapter |
| 16. | chief | most important or leading |
| 17. | commencement | the act of beginning |
| 18. | dawn | the first appearance |
| 19. | day-one | the very beginning |
| 20. | daybreak | the start of the day |
| 21. | debut | first appearance or presentation |
| 22. | earlier | before another time |
| 23. | earliest | happening before all others |
| 24. | eldest | born before siblings |
| 25. | embryonic | at the earliest stage |
| 26. | emergence | the act of appearing first |
| 27. | entry-level | at the beginning stage |
| 28. | episode one | the first episode |
| 29. | firstly | as the first point |
| 30. | fore | situated at the front |
| 31. | forefront | the leading position |
| 32. | foremost | most prominent or leading |
| 33. | forepart | the front or beginning part |
| 34. | forerunning | coming before others |
| 35. | formative | relating to an early stage |
| 36. | from the outset | from the beginning |
| 37. | from the start | from the beginning |
| 38. | frontmost | farthest toward the front |
| 39. | genesis | the origin or beginning |
| 40. | groundbreaking | earliest and pioneering |
| 41. | head | at the front |
| 42. | headmost | nearest the front |
| 43. | in the beginning | at the start |
| 44. | inaugural | marking a first event |
| 45. | incipient | in an early stage |
| 46. | initial | coming at the beginning |
| 47. | initially | at the beginning |
| 48. | introduction | the opening presentation |
| 49. | introductory | serving as the beginning |
| 50. | kickoff | the opening start |
| 51. | launch | the start of something |
| 52. | lead | the front position |
| 53. | leading | ahead of others |
| 54. | lesson one | the first lesson |
| 55. | maiden | being the first of its kind |
| 56. | nascent | just beginning to exist |
| 57. | newborn | just begun or created |
| 58. | novel | new and not seen before |
| 59. | number one | ranked first |
| 60. | one | number first in order |
| 61. | onset | the beginning stage |
| 62. | opening | starting or introductory |
| 63. | origin | the beginning or source |
| 64. | original | earliest or initial form |
| 65. | originally | at first or before changes |
| 66. | originating | coming first or creating |
| 67. | outset | the start or beginning |
| 68. | overture | an opening move or piece |
| 69. | pioneering | being among the first |
| 70. | preceding | coming before another |
| 71. | prefatory | serving as an introduction |
| 72. | preliminary | coming before the main part |
| 73. | premier | first in rank or importance |
| 74. | premiere | first public performance |
| 75. | primary | main or earliest in order |
| 76. | principal | main or highest-ranking |
| 77. | prior | earlier in time or order |
| 78. | prototypal | serving as the original model |
| 79. | prototype | the first model |
| 80. | rise | the beginning of something |
| 81. | round-one | the opening round |
| 82. | rudimentary | basic and early-stage |
| 83. | run-up | period before the start |
| 84. | senior | older or earlier in rank |
| 85. | soonest | earliest in time |
| 86. | stage one | the first stage |
| 87. | starting | occurring at the outset |
| 88. | step one | the first step |
| 89. | sunrise | the day’s beginning |
| 90. | supreme | highest in rank |
| 91. | threshold | the beginning point |
| 92. | to begin with | as the first point |
| 93. | to start with | as an opening point |
| 94. | top | highest or leading position |
| 95. | topmost | highest or foremost |
| 96. | trailblazing | opening the way first |
| 97. | up front | at the beginning |
| 98. | uppermost | highest or foremost |
| 99. | vanguard | at the forefront |
| 100. | year-one | the first year |