9-Letter Words Ending in OST

There are 12 9-letter words that end in OST. 9 are common words, such as GUIDEPOST and HOARFROST. A rarer one is STERNPOST. In this set, R is the most frequent open letter (11 words). 3 words contain a doubled letter.

Full list 12

guideposthoarfrostinnermostlowermostoutermostrightmostundermostuppermostuttermostaftermoststernmoststernpost

About this list

Words
12 (9 common words)
Common example
guidepost
Rare example
sternpost
Doubled letters
3
Ending in S
0
Most frequent letter
R (11)

Questions

How many 9-letter words ending in ost are there?

12. 9 of them are common words.

What is a common example?

GUIDEPOST is among the common words in this set.