14-Letter Words Matching ____O_____H___

There are 12 14-letter words that match ____O_____H___. 4 are common words, such as CUSTODIANSHIPS and PHOTOFINISHING. A rarer one is SHADOWGRAPHIES. 2 words contain a doubled letter.

Full list 12

custodianshipsphotofinishingradiotelephoneschoolteachersradiotelephonytriiodomethanecosponsorshipslandownershipsorthophosphatephotofinishersproconsulshipsshadowgraphies

About this list

Words
12 (4 common words)
Common example
custodianships
Rare example
shadowgraphies
Doubled letters
2
Ending in S
7

Questions

How many 14-letter words matching ____o_____h___ are there?

12. 4 of them are common words.

What is a common example?

CUSTODIANSHIPS is among the common words in this set.