15-Letter Words Matching O_____A________

There are 20 15-letter words that match O_____A________. 0 are common words, such as OBSERVATIONALLY and OLIGOSACCHARIDE. A rarer one is OVERZEALOUSNESS. In this set, E is the most frequent open letter (20 words). 11 words contain a doubled letter.

Full list 20

observationallyoligosaccharideosteopathicallyoverbearingnessoverdramatizingobservabilitiesobstinatenessesobtainabilitiesopenheartednessorientationallyoverclassifyingoverelaboratingoverelaborationoverevaluationsoverexaggeratedoverexaggeratesoverglamorizingoverimaginativeoverstabilitiesoverzealousness

About this list

Words
20 (0 common words)
Common example
observationally
Rare example
overzealousness
Doubled letters
11
Ending in S
9
Most frequent letter
E (20)

Questions

How many 15-letter words matching o_____a________ are there?

20. 0 of them are common words.

What is a common example?

OBSERVATIONALLY is among the common words in this set.