definition of
expound

[1] #1 expound v. [elaborate, lucubrate, expatiate, exposit, enlarge, flesh out, expand, 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". wn

[2] #2 expound v. [set forth, exposit] state; "set forth one's reasons". wn