13-Letter Words Matching ____H____O___

There are 12 13-letter words that match ____H____O___. 3 are common words, such as NEIGHBORHOODS and STAPHYLOCOCCI. A rarer one is URETHROSCOPES. In this set, O is the most frequent open letter (12 words). 4 words contain a doubled letter.

Full list 12

neighborhoodsstaphylococciweatherproofsarachnophobialymphocytosisxanthochroismlymphocytoseslymphomatoseslymphomatosissouthernwoodssynchroscopesurethroscopes

About this list

Words
12 (3 common words)
Common example
neighborhoods
Rare example
urethroscopes
Doubled letters
4
Ending in S
9
Most frequent letter
O (12)

Questions

How many 13-letter words matching ____h____o___ are there?

12. 3 of them are common words.

What is a common example?

NEIGHBORHOODS is among the common words in this set.