12-Letter Words Matching _____O___B__

There are 20 12-letter words that match _____O___B__. 5 are common words, such as CONTROLLABLE and CUMULONIMBUS. A rarer one is THERMOSTABLE. 8 words contain a doubled letter.

Full list 20

controllablecumulonimbusfluorocarbonpsychobabblerenegotiabledownloadablecontrollablyirreformableirresolvabletechnobabbletechnophobestechnophobiatechnophobicunaffordableunnegotiableunresolvableailurophobesailurophobiadiagnoseablethermostable

About this list

Words
20 (5 common words)
Common example
controllable
Rare example
thermostable
Doubled letters
8
Ending in S
3

Questions

How many 12-letter words matching _____o___b__ are there?

20. 5 of them are common words.

What is a common example?

CONTROLLABLE is among the common words in this set.