1. (

• introductory

) serving to open or begin; "began the slide show with some introductory remarks" ;

2. (

• basic ,
• introductory

) serving as a base or starting point; "a basic course in Russian"; "basic training for raw recruits"; "a set of basic tools"; "an introductory art course" ;

3. (

• introductory ,
• prefatorial ,
• prefatory

) serving as an introduction or preface ;