In total, how many words are available using this combination of letters?From this page of words that have 'k' in and end with 'sh', you have 239 entries which are available.
What is the longest word you can make using words that have 'k' in and end with 'sh'?'Unbluestockingish' is the biggest word that Dictionarypedia could construct. It is made up 17 letters.
What is an interesting word from all the word combos possible ?Our favorite peculiar word from this list is 'dankish'. The dictionary defines it as "Somewhat dank. -- Dank"ish*ness, n. In a dark and dankish vault at home. Shak.".
What is the most popular word for this page?A well-known word for the combination you requested is 'skirmish'.
What's the highest scoring word you can play in Scrabble ?As there are an enormous 239 entries, you should go for 'jackfish' which scores 27 points.