| preparatory(adjective, start, beginning, words, basic) |
| prefatory(adjective, start, simple, opening, words) |
| introductory(adjective, start, simple, beginning, straightforward) |
| prior(adjective, initial, precedence, precursor, introductory) |
| preceding(adjective, initial, precedence, introductory) |
| preface(noun, beginning, opening, introduction, prelude) |
| opening(noun, adjective, beginning, basic, first) |
| prelude(noun, event, beginning, opening, introduction) |
| precursory(adjective, beginning, opening, basic, past) |
| beginning(noun, adjective, simple, plain, new) |
| first(adjective, beginning, opening, original, basic) |
| inaugural(noun, adjective, beginning, original, first) |
| initial(adjective, simple, plain, beginning, opening) |
| preparation(noun, beginning, introduction) |
| overture(noun, introduction, preface, prelude, foreword) |
| antecedent(adjective, original, past, previous, early) |
| precedent(noun, adjective, preparation, precedence, precursor) |
| introduction(noun, start, approach, beginning, opening) |
| elementary(adjective, simple, basic, first, previous) |
| exploratory(adjective, new, opening, trial, basic) |