15-Letter Words Matching _OS____________

There are 21 15-letter words that match _OS____________. 3 are common words, such as COSMOPOLITANISM and HOSPITALIZATION. A rarer one is POSTVACCINATION. In this set, P is the most frequent open letter (21 words). 7 words contain a doubled letter.

Full list 21

cosmopolitanismhospitalizationpostconsonantalcosmopolitanizepostoperativelypossessednessespostadolescentspostapocalypticpostdevaluationpostdivestitureposthemorrhagicpostinoculationpostirradiationpostmastershipspostmillenarianpostpollinationpostproductionspoststimulationpoststimulatoryposttransfusionpostvaccination

About this list

Words
21 (3 common words)
Common example
cosmopolitanism
Rare example
postvaccination
Doubled letters
7
Ending in S
4
Most frequent letter
P (21)

Questions

How many 15-letter words matching _os____________ are there?

21. 3 of them are common words.

What is a common example?

COSMOPOLITANISM is among the common words in this set.