Words that start with 'rou' and contain 'u'

In Scrabble, what is the most points possible from words that start with 'rou' and contain 'u'?
From this particular combination, you can play 'rouleaux' for a total of 15 points.

What is the most common word that starts with 'rou' and includes 'u' in the dictionary?
'Roundabout' is the most well-known word from this that start with 'rou' and include 'u', ranked 27694^th most common word.

What is the longest word you can construct with words that start with 'rou' and include 'u'?
The largest word is 14 letters, which is 'roundaboutness'.

What's an interesting word from this page of words that start with 'rou' and include 'u'?
Arguably one of the most unusual words from this list of words that start with 'rou' and include 'u' is 'roustabout'. According to the dictionary, 'roustabout' is defined as "A laborer, especially a deck hand, on a river steamboat, who moves the cargo, loads and unloads wood, and the like; in an opprobrious sense, a shiftless vagrant who lives by chance jobs. [Western U.S.]".

In total, how many words are there using this list?
From this page of words that start with 'rou' and contain 'u', you have 36 outstanding combinations which can be selected.