| preliminary(adjective, start, beginning, words, basic) |
| prefatory(adjective, start, words, basic, precedence) |
| introductory(adjective, start, beginning, words, first) |
| preceding(adjective, precedence, introductory) |
| preparative(adjective, basic, preparation, introductory) |
| opening(adjective, basic, introductory) |
| precursory(adjective, beginning, precedence) |
| prior(adjective, precedence, introductory) |
| primary(adjective, basic, introductory) |
| before(adjective, basic, precedence, introductory) |
| elementary(adjective, basic, introductory) |
| incipient(adjective, beginning) |
| initial(adjective, beginning) |
| prelusive(adjective, basic, precedence, introductory) |
| experimental(adjective, exploratory) |
| first(adjective, beginning) |
| inaugural(adjective, beginning) |
| inductive(adjective, start, basic, introductory) |
| precedent(noun, preparation, precedence) |
| prolegomenous(adjective, start, words, preliminary, introductory) |