13-Letter Words Matching O________A___

There are 35 13-letter words that match O________A___. 10 are common words, such as OBJECTIONABLE and OBJECTIONABLY. A rarer one is OXALOACETATES. In this set, E is the most frequent open letter (29 words). 12 words contain a doubled letter.

Full list 35

Common words

objectionableobjectionablyoperationallyoverabundanceoverdecoratedoverdecoratesoverestimatedoverestimatesoverpopulatedoverpopulatesobsessionallyontogenically
objectionableobjectionablyoperationallyoverabundanceoverdecoratedoverdecoratesoverestimatedoverestimatesoverpopulatedoverpopulatesobsessionallyontogenicallyontologicallyorgiasticallyorthocephalicoscillographsoverexcitableobstetricallyonomasticallyopisthobranchorthoepicallyoscillographyoverabstractsoverdominanceovermedicatedovermedicatesovermodulatedoverpersuadedoverpersuadesoverprogramedoverregulatedoverregulatesoversaturatedoversaturatesoxaloacetates

About this list

Words
35 (10 common words)
Common example
objectionable
Rare example
oxaloacetates
Doubled letters
12
Ending in S
10
Most frequent letter
E (29)

Questions

How many 13-letter words matching o________a___ are there?

35. 10 of them are common words.

What is a common example?

OBJECTIONABLE is among the common words in this set.