| admittance(opening, addition, establishment, introduction, preface) |
| awakening(opening, addition, establishment, introduction, preface) |
| baptism(opening, addition, establishment, introduction, preface) |
| basic principles(expression, opening, addition, establishment, introduction) |
| basic text(expression, opening, addition, establishment, introduction) |
| breakthrough |
| commencement(start, beginning, opening, addition, establishment) |
| debut(opening, addition, establishment, introduction, preface) |
| essentials(opening, addition, establishment, introduction, preface) |
| establishment(opening, addition, introduction, preface, prelude) |
| first acquaintance(expression, opening, addition, establishment, introduction) |
| first taste(expression, opening, addition, establishment, introduction) |
| groundwork |
| heading |
| hornbook(opening, addition, establishment, preface, foreword) |
| inauguration(noun, start, beginning, opening, addition) |
| inception(noun, opening, addition, establishment, introduction) |
| induction(noun, opening, addition, establishment, introduction) |
| influx(opening, addition, establishment, introduction, preface) |
| ingress(opening, addition, establishment, introduction, preface) |