| launch(opening, addition, establishment, introduction, preface) |
| lead(opening, addition, establishment, introduction, preface) |
| lead-in(noun, opening, addition, establishment, introduction) |
| length(noun, progress, line, approach, course) |
| line(noun, progress, course, direction, route) |
| listing(noun, access) |
| march(noun, progress, line, approach, course) |
| margin(noun, access) |
| movement(noun, progress, line, course, direction) |
| opening(noun, progress, lead, line, approach) |
| opening remarks(expression, opening, addition, establishment, introduction) |
| overture(opening, addition, establishment, introduction, preface) |
| passport(noun, grant, document, license, patent) |
| path(noun, progress, line, connection, approach) |
| pathway(noun, progress, line, course, direction) |
| pioneering(opening, addition, establishment, introduction, preface) |
| preamble(opening, addition, establishment, introduction, preface) |
| preface(opening, addition, establishment, introduction, prelude) |
| preliminaries(opening, addition, establishment, introduction, preface) |
| prelude(opening, addition, establishment, introduction, preface) |