অর্থ : Serving to open or begin.
							উদাহরণ : 
							Began the slide show with some introductory remarks.
							
অর্থ : Serving as a base or starting point.
							উদাহরণ : 
							A basic course in Russian.
							Basic training for raw recruits.
							A set of basic tools.
							An introductory art course.
							
সমার্থক : basic
অর্থ : Serving as an introduction or preface.
সমার্থক : prefatorial, prefatory