Is there any word on this page that sticks out as the most popular?A well-known word for the combination you requested is 'fanaticism'.
What's an unusual word from this page of words that have 'f' in and end with 'ism'?Ranking as our favorite weird word on this list is 'fetichism'. It means "1. The doctrine or practice of belief in fetiches. 2. Excessive devotion to one object or one idea; abject superstition; blind adoration. The real and absolute worship of fire falls into two great divisions, the first belonging rather to fetichism, the second to polytheism proper. Tylor.".
What is the highest score you can get in Scrabble from this list of words that have 'f' in and end with 'ism'?With the volume of words from which to select, your best option is 'cuffyism' which scores 21 points.
How many usable words could one put together using the combination you've searched for?Altogether, you could construct exactly 220 words.
What's the biggest word you can create with the combination specified?There are 20 characters in the word 'anticonfederationism', which makes it the longest word Dictionarypedia has.