13-Letter Words Matching _Y_____N_____

There are 23 13-letter words that match _Y_____N_____. 8 are common words, such as HYDRODYNAMICS and HYDROGENATING. A rarer one is TYPICALNESSES. In this set, I is the most frequent open letter (22 words). 2 words contain a doubled letter.

Full list 23

hydrodynamicshydrogenatinghydrogenationhypertensionshypertensiveshypochondriachypochondriassynchronizingsynchronouslyhyaluronidasehydrokineticshypochondriumsynchronicityhyperfunctionhyperkinesiashypertonicitylyricalnessessycophantismssynchronisingsynchronisticsynchronizerstypefoundingstypicalnesses

About this list

Words
23 (8 common words)
Common example
hydrodynamics
Rare example
typicalnesses
Doubled letters
2
Ending in S
11
Most frequent letter
I (22)

Questions

How many 13-letter words matching _y_____n_____ are there?

23. 8 of them are common words.

What is a common example?

HYDRODYNAMICS is among the common words in this set.