In total, how many words are possible to make using this list?You can pick from 406 words which cover all combinations.
What's the most popular word that starts with 'syn' and includes 'i' in the dictionary?According to our records, the most common word in the dictionary that start with 'syn' and include 'i' is 'synthesis'.
What's the longest word you can make with words that start with 'syn' and include 'i'?'syncategorematically'.
Which is the most unique word that starts with 'syn' and includes 'i'?The most peculiar word in this list is 'syndetic'. It is defined as "Connecting; conjunctive; as, syndetic words or connectives; syndetic references in a dictionary. -- Syn*det"ic*al*ly, adv. With the syndetic juxtaposition of distinct members, the article is not often repeated. C. J. Grece (Trans. Maetzner's Gram.).".
In Scrabble, what's the best score possible using this list of words that start with 'syn' and contain 'i'?Since there are an extensive 406 entries, you'll want to opt for 'synerize' scoring 20 points.