14-Letter Words Matching _T_________S__

There are 16 14-letter words that match _T_________S__. 5 are common words, such as ETHNOCENTRISMS and STEALTHINESSES. A rarer one is STRANDEDNESSES. In this set, S is the most frequent open letter (16 words). 8 words contain a doubled letter.

Full list 16

ethnocentrismsstealthinessesstraightnessesstubbornnessesstudiousnessesstalwartnessesstaphyloplastystreptokinasesstrophanthusesstructuralismsstructuralistsetherealnessesethnobotanistspteridologistssterlingnessesstrandednesses

About this list

Words
16 (5 common words)
Common example
ethnocentrisms
Rare example
strandednesses
Doubled letters
8
Ending in S
15
Most frequent letter
S (16)

Questions

How many 14-letter words matching _t_________s__ are there?

16. 5 of them are common words.

What is a common example?

ETHNOCENTRISMS is among the common words in this set.