9-Letter Words Matching ____O__M_

There are 50 9-letter words that match ____O__M_. 7 are common words, such as ASTRONOMY and DICHOTOMY. A rarer one is YAHOOISMS. In this set, O is the most frequent open letter (32 words). 2 words contain a doubled letter.

Full list 50

Common words

astronomydichotomyfactotumsjingoismsmarjoramsmetronomepantomimeastrodomeceliotomycolpotomycosmoramacostotomy
astronomydichotomyfactotumsjingoismsmarjoramsmetronomepantomimeastrodomeceliotomycolpotomycosmoramacostotomycycloramacystotomydichogamyharmotomehydrobombhydrosomeiridotomykaryogamykaryosomeleptosomeleucotomylithotomymicrosomemicrotomenecrotomyneurotomyosteotomeosteotomyprotonemarhizotomyteetotumstreponemavariorumsanisogamydesmosomedisbosomsepizoismsguaiocumsleukotomypicloramssarcosomesierozemstaphonomytautonymstautonymyteleonomytreponemeyahooisms

About this list

Words
50 (7 common words)
Common example
astronomy
Rare example
yahooisms
Doubled letters
2
Ending in S
12
Most frequent letter
O (32)

Questions

How many 9-letter words matching ____o__m_ are there?

50. 7 of them are common words.

What is a common example?

ASTRONOMY is among the common words in this set.