Words with 'zi' at the start and 's' at the end

What's the highest scoring word you can play in Scrabble ?
One can make 'zizyphus' which scores 34 in Scrabble.

What is the maximum number of words you're able to put together using words that start with 'zi' and end with 's'?
You can select up to 50 entries addressing your query.

What word that starts with 'zi' and ends with 's' is the most interesting?
Dictionarypedia feel 'zincous' to be the most interesting word you can construct. According to the Oxford dictionary, 'zincous' means "1. (Chem.) (a) Of, pertaining to, or containing, zinc; zincic; as, zincous salts. (B) Hence, formerly, basic, basylous, as opposed to chlorous. 2. (Physics) Of or pertaining to the positive pole of a galvanic battery; electro-positive.".

Which word on this page is made up of the highest number of letters?
'zingiberaceous' (14 letters)

What's the most common word that starts with 'zi' and ends with 's'?
'Zigzags' is the most well-known word from this list, ranked 67407^th most common word.