"expounded" in the verb sense
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"
Source: WordNet® (An amazing lexical database of English)
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