How many letters are in the biggest word on this list?The longest word you can construct from this list is 'oenanthaldehyde', and it has 15 letters.
How many actual words could one make using the combination which you've searched for?From this list of words that start with 'oen' and include 'h', you have 18 outstanding entries which are possible.
What's an interesting word from this list?The most interesting word from this list is 'oenanthylic'. It is defined as "Pertaining to, derived from, or containing, oenanthyl; specifically, designating an acid formerly supposed to be identical with the acid in oenanthic ether, but now known to be identical with heptoic acid.".
What's the highest scoring word in Scrabble you can play for ?One could make 'oenochoe' which scores 13 points in Scrabble.