15-Letter Words Matching _Y____O________

There are 20 15-letter words that match _Y____O________. 2 are common words, such as SYNCHRONIZATION and TYRANNOSAURUSES. A rarer one is SYNCHRONOUSNESS. 4 words contain a doubled letter.

Full list 20

synchronizationtyrannosaurusescyanocobalaminshydrocortisoneshypercorrectionhypochondriacalhypochondriaseshypochondriasissynchronicitiessynecdochicallycyanocobalaminecytophotometrichypercoagulablehypermobilitieshypermodernistshyperpolarizinghypersomnolencehypertonicitiessynchronisationsynchronousness

About this list

Words
20 (2 common words)
Common example
synchronization
Rare example
synchronousness
Doubled letters
4
Ending in S
10

Questions

How many 15-letter words matching _y____o________ are there?

20. 2 of them are common words.

What is a common example?

SYNCHRONIZATION is among the common words in this set.