How many words are there using the combination of letters requested?You'll find 2,780 words overall.
How many characters are in the largest word from this list?'Pharyngoepiglottidean' contains 21 characters, and is the longest word possible to make from the combination specified.
What's the most common word that has 'o' in and ends with 'an' in the dictionary?A popular word for your search is 'woman'.
What word that has 'o' in and ends with 'an' is the most unique?Undeniably one of the most strange words from this list is 'powan'. According to the Oxford dictionary, 'powan' means "A small British lake whitefish (Coregonus clupeoides, or C. Ferus); -- called also gwyniad and lake herring.".
In Scrabble, what's the highest score you can get from words containing 'o' and ending with 'an'?With a massive 2,780 entries, your best bet is 'pozzolan' which scores 28 points.