How many characters does the longest word on this list consist of?'Somewhatness'
How many words are possible to make using the combination of letters specified?On this page of words that start with 's' and contain 'atn', Dictionarypedia has discovered 3 combinations that are possible altogether.
What's the highest scoring word you can play in Scrabble ?Your only feasible option is 'shaatnez' scoring 20 points.