13-Letter Words Containing ROO

There are 14 13-letter words that contain ROO. 9 are common words, such as BULLETPROOFED and BURGLARPROOFS. A rarer one is WATERPROOFERS. In this set, P is the most frequent open letter (11 words). 14 words contain a doubled letter.

Full list 14

bulletproofedburglarproofschildproofingcrookednessesflameproofingmicroorganismsoundproofingwaterproofingweatherproofspoltrooneriesstormtroopersflameproofersnonclassroomswaterproofers

About this list

Words
14 (9 common words)
Common example
bulletproofed
Rare example
waterproofers
Doubled letters
14
Ending in S
8
Most frequent letter
P (11)

Questions

How many 13-letter words containing roo are there?

14. 9 of them are common words.

What is a common example?

BULLETPROOFED is among the common words in this set.