9-Letter Words Matching _T___R___

There are 16 9-letter words that match _T___R___. 8 are common words, such as ITINERANT and ITINERARY. A rarer one is STILLROOM. 6 words contain a doubled letter.

Full list 16

itinerantitinerarystateroomsteamrollstewardedstingraysstockroomstoreroomitineracyitineratestaffroomstarfruitstuporousethnarchsstaumrelsstillroom

About this list

Words
16 (8 common words)
Common example
itinerant
Rare example
stillroom
Doubled letters
6
Ending in S
4

Questions

How many 9-letter words matching _t___r___ are there?

16. 8 of them are common words.

What is a common example?

ITINERANT is among the common words in this set.