13-Letter Words Matching _____HT______

There are 16 13-letter words that match _____HT______. 5 are common words, such as ENLIGHTENMENT and SPRIGHTLINESS. A rarer one is XEROPHTHALMIC. In this set, E is the most frequent open letter (12 words). 8 words contain a doubled letter.

Full list 16

enlightenmentsprightlinessthoughtlesslyunsightlinessuprightnessesallochthonousautochthonousbenightednessdelightednessdraughtboardsterephthalatexerophthalmiamonophthongalunrighteouslyuptightnessesxerophthalmic

About this list

Words
16 (5 common words)
Common example
enlightenment
Rare example
xerophthalmic
Doubled letters
8
Ending in S
9
Most frequent letter
E (12)

Questions

How many 13-letter words matching _____ht______ are there?

16. 5 of them are common words.

What is a common example?

ENLIGHTENMENT is among the common words in this set.