10-Letter Words Matching ____O___U_

There are 34 10-letter words that match ____O___U_. 15 are common words, such as CENSORIOUS and COLLOQUIUM. A rarer one is STOMODAEUM. In this set, I is the most frequent open letter (27 words). 4 words contain a doubled letter.

Full list 34

Common words

censoriouscolloquiumcommodiousconsortiumeuphoniousglamourousharmoniousimpromptusingloriousopprobriumpetrolatumprecocious
censoriouscolloquiumcommodiousconsortiumeuphoniousglamourousharmoniousimpromptusingloriousopprobriumpetrolatumprecociouspurposefulretrovirusvictoriousadenovirusandroeciumcolporteurdiaconicumdiplodocusdiscobolusperiosteumphototonusprimordiumpropositusradiopaquerapporteurrhinovirusseaborgiumdeltoideusparvoviruspoliovirussemiopaquestomodaeum

About this list

Words
34 (15 common words)
Common example
censorious
Rare example
stomodaeum
Doubled letters
4
Ending in S
19
Most frequent letter
I (27)

Questions

How many 10-letter words matching ____o___u_ are there?

34. 15 of them are common words.

What is a common example?

CENSORIOUS is among the common words in this set.