13-Letter Words Matching O______I_____

There are 30 13-letter words that match O______I_____. 8 are common words, such as OBSTETRICIANS and OPPROBRIOUSLY. A rarer one is OVERSERIOUSLY. In this set, R is the most frequent open letter (24 words). 11 words contain a doubled letter.

Full list 30

Common words

obstetriciansopprobriouslyoverachieversoverachievingoverambitiousoverestimatedoverestimatesoveroptimismsoctodecillionontogenicallyontologicallyorgiastically
obstetriciansopprobriouslyoverachieversoverachievingoverambitiousoverestimatedoverestimatesoveroptimismsoctodecillionontogenicallyontologicallyorgiasticallyoverexcitableoverinsistentobstetricallyonomasticallyonomasticiansoppositionistorthoepicallyoutintriguingoveranxietiesovercivilizedoverdesigningoverdominanceoverengineersovermedicatedovermedicatesoveroptimistsoverreliancesoverseriously

About this list

Words
30 (8 common words)
Common example
obstetricians
Rare example
overseriously
Doubled letters
11
Ending in S
11
Most frequent letter
R (24)

Questions

How many 13-letter words matching o______i_____ are there?

30. 8 of them are common words.

What is a common example?

OBSTETRICIANS is among the common words in this set.