“never use this word because it’s common, instead use all of these things that i’ll call synonyms even though they carry different connotations and will change the meaning of your dialogue if you use them” — very bad and unfortunately very common writing advice
“Do you want this sandwich?” she elaborated, acquiring the sandwich from her rucksack with a set of fingers.
His visage was set aflame with a smile. “Sure,” he postulated.
That, my friends and acquaintances, is the term, redundency, which in a sense is defined by the use of termonaligy of simliar definition often making a piece of litterature longer than necsesary and adding to the length of a work while subsequently losing meaning.