9-Letter Words Containing RTR

There are 18 9-letter words that contain RTR. 6 are common words, such as CARTRIDGE and COURTROOM. A rarer one is TORTRIXES. 3 words contain a doubled letter.

Full list 18

cartridgecourtroompartridgeportraitsportrayalportrayedovertradeovertrainovertrickovertrumppeartreesportrayertartratestortricidbourtreesovertreatovertrimstortrixes

About this list

Words
18 (6 common words)
Common example
cartridge
Rare example
tortrixes
Doubled letters
3
Ending in S
6

Questions

How many 9-letter words containing rtr are there?

18. 6 of them are common words.

What is a common example?

CARTRIDGE is among the common words in this set.