7-Letter Words Matching O_S____

There are 21 7-letter words that match O_S____. 9 are common words, such as OBSCENE and OBSCURE. A rarer one is OSSEINS. In this set, E is the most frequent open letter (16 words). 7 words contain a doubled letter.

Full list 21

obsceneobscureobsequyobserveonshoreonstageoustersoustingoystersoospermoosporeopsoninosseousossicleossificossuaryoestrinoestrumoestrusopsonicosseins

About this list

Words
21 (9 common words)
Common example
obscene
Rare example
osseins
Doubled letters
7
Ending in S
5
Most frequent letter
E (16)

Questions

How many 7-letter words matching o_s____ are there?

21. 9 of them are common words.

What is a common example?

OBSCENE is among the common words in this set.