How many letters are in the biggest word from this list?The largest word that's possible to construct from this combination is 'grieben', and it contains 7 characters.
How many acceptable words could one make using this list?From this page of words that have 'g' in and end with 'ben', you have 2 brilliant combinations which can be selected.
What's the highest scoring word in Scrabble available on this page ?2 combinations available, you're only practical word is 'grieben' scoring 10 points.