| inception(opening, addition, establishment, introduction, preface) |
| induction(noun, opening, addition, establishment, introduction) |
| inflatus(noun, excitement, influence, idea, spur) |
| influence(noun, excitement, idea, spur, encouragement) |
| influx(opening, addition, establishment, introduction, preface) |
| ingress(opening, addition, establishment, introduction, preface) |
| initiation(opening, addition, establishment, introduction, preface) |
| insertion(noun, opening, addition, establishment, introduction) |
| insight(noun, excitement, influence, idea, spur) |
| installation(opening, addition, establishment, introduction, preface) |
| institution(opening, addition, establishment, introduction, preface) |
| interpolation(opening, addition, establishment, introduction, preface) |
| intro(opening, addition, establishment, introduction, preface) |
| invigoration(noun, repetition, restoration, recovery, cheering) |
| kindling(noun, excitement, stirring, provocation, stimulation) |
| launch(opening, addition, establishment, introduction, preface) |
| lead(opening, addition, establishment, introduction, preface) |
| lead-in(noun, opening, addition, establishment, introduction) |
| motivation(noun, excitement, influence, idea, spur) |
| motive(noun, excitement, influence, idea, spur) |