1. (

• exposition ,
• expounding

) a systematic interpretation or explanation (usually written) of a specific topic ;

1. (

• elaborate ,
• lucubrate ,
• expatiate ,
• exposit ,
• enlarge ,
• flesh_out ,
• expand ,
• expound ,
• dilate ,

) add details, as to an account or idea; clarify the meaning of and discourse in a learned way, usually in writing; "She elaborated on the main ideas in her dissertation" ;

2. (

• set_forth ,
• expound ,
• exposit

) state; "set forth one's reasons" ;