start onset outset commencement dawn launch opening break chance kickoff opportunity developing development initiation introduction morning overture threshold unfolding debut inauguration incipience incipiency preface prelude takeoff activation dawning establishment induction installation instigation opener presentation rudiment top inception birth genesis alpha nascence baseline origination rise origin creation institution launching arrival source emergence appearance foundation conception founding baptism installment instalment entrance admission formation infancy spring advent unveiling premiere coming starting investiture inaugural instatement root first basis fountainhead invention investment actuation leadoff surfacing materialization incoming entrée occurrence enrollment enrolment materialisation indoctrination preliminaries outbreak commencing startup graduation bow embarkation issue emanation arising materializing evolution