Words that start with 'r' and contain 'uce'

What's the highest scoring word in Scrabble you can play for ?
For a total of 13 points in Scrabble, one could play 'rucervus'.

What's the most popular word that starts with 'r' and includes 'uce'?
There's 'reduced', which is the 2761^st most popular word.

What is an unusual word from the word combinations available ?
Standing as our favorite interesting word on this page is 'reducent'. The traditional definition of 'reducent' is as follows: "Tending to reduce. -- N. A reducent agent.". Source Cambridge Dictionary.

How many actual words can you make using the specified combination?
It is possible to derive 30 words from the combination of words that start with 'r' and include 'uce'.

Which word in particular from this list is made up of the largest number of letters?
The word 'radiolucencies' has 14 characters.