| interpolation(noun, opening, addition, establishment, introduction) |
| intro(noun, start, beginning, opening, addition) |
| onset(start, beginning, introduction) |
| opener(noun, start, approach, beginning, introduction) |
| opening remarks(noun, expression, opening, addition, establishment) |
| outset(start, beginning, introduction) |
| pioneering(noun, opening, addition, establishment, introduction) |
| preliminaries(noun, opening, addition, establishment, introduction) |
| preliminary(noun, approach, introduction, preface, prelude) |
| primer(noun, opening, addition, establishment, introduction) |
| proem(noun, opening, addition, establishment, introduction) |
| start(beginning, introduction) |
| ABCs(noun, spadework, understructure) |
| appearance |
| approach |
| arrival |
| birth(start, beginning, introduction) |
| coming out(expression, start, beginning, introduction) |
| conception |
| countdown(noun, approach, kickoff, warm-up) |