EXPATIATING
Scrabble letter values: E1X8P3A1T1I1A1T1I1N1G2 = 21
Definition
EXPATIATING is the present participle of EXPATIATE.
verb EXPATIATE: add details, as to an account or idea.
Synonyms of EXPATIATE: elaborate, lucubrate, exposit, enlarge, flesh_out, expand, expound, dilate