What is the longest word you can assemble with this list?The largest word is 13 letters, which is 'hairsbreadths'.
What's the highest number of points you could get in Scrabble using this list of words that start with 'h' and end with 'ths'?It is possible to make 'heighths' which gets 18 points.
What's the most popular word for this page?A popular word for your request is 'hearths'.
How many usable words could one make using the combination which you've searched for?There are up to 18 words.