12-Letter Words Matching ______T_H___

There are 15 12-letter words that match ______T_H___. 3 are common words, such as BIRDWATCHERS and HEMSTITCHING. A rarer one is TOPSTITCHING. In this set, I is the most frequent open letter (14 words). 4 words contain a doubled letter.

Full list 15

birdwatchershemstitchinghopscotchingstudentshipsapparatchikiapparatchiksathwartshipsbirdwatchinggnatcatchersinescutcheonovermatchinghemstitchersoverwithheldoverwithholdtopstitching

About this list

Words
15 (3 common words)
Common example
birdwatchers
Rare example
topstitching
Doubled letters
4
Ending in S
6
Most frequent letter
I (14)

Questions

How many 12-letter words matching ______t_h___ are there?

15. 3 of them are common words.

What is a common example?

BIRDWATCHERS is among the common words in this set.