12-Letter Words Matching ___M_____S__

There are 45 12-letter words that match ___M_____S__. 20 are common words, such as CHUMMINESSES and CLAMMINESSES. A rarer one is SWAMPINESSES. In this set, S is the most frequent open letter (40 words). 21 words contain a doubled letter.

Full list 45

Common words

chumminessesclamminessesclumsinessescommodiouslycommonnessescosmogonistscosmologistscrumminessesdermatitisesecumenicismsetymologistsflimsinesses
chumminessesclamminessesclumsinessescommodiouslycommonnessescosmogonistscosmologistscrumminessesdermatitisesecumenicismsetymologistsflimsinessesgrumpinessesharmoniouslypromptnessesseamstressesseemlinessesskimpinessessummerhousestremendouslyagamogenesesagamogenesisanamorphosesanamorphosischymotrypsinepimorphosisisomorphismsprimitivismsstomatitisestrombidiasisbromegrassescommunalismscommunalistscosmopolisesdismalnessesecumenicistsetymologisedetymologisesformalnessesgemmologistsharmonicistshermeticismsmammalogistsprimitivistsswampinesses

About this list

Words
45 (20 common words)
Common example
chumminesses
Rare example
swampinesses
Doubled letters
21
Ending in S
40
Most frequent letter
S (40)

Questions

How many 12-letter words matching ___m_____s__ are there?

45. 20 of them are common words.

What is a common example?

CHUMMINESSES is among the common words in this set.