13-Letter Words Matching _____YL______

There are 12 13-letter words that match _____YL______. 4 are common words, such as MONOSYLLABLES and POLYSYLLABLES. A rarer one is SPONDYLITIDES. In this set, S is the most frequent open letter (11 words). 7 words contain a doubled letter.

Full list 12

monosyllablespolysyllablesprophylacticsstaphylococcidecasyllablesoctosyllablesspondylitisesanaphylactoiddecasyllabicsmecamylaminesoctosyllabicsspondylitides

About this list

Words
12 (4 common words)
Common example
monosyllables
Rare example
spondylitides
Doubled letters
7
Ending in S
10
Most frequent letter
S (11)

Questions

How many 13-letter words matching _____yl______ are there?

12. 4 of them are common words.

What is a common example?

MONOSYLLABLES is among the common words in this set.