9-Letter Words Matching M_____S__

There are 78 9-letter words that match M_____S__. 20 are common words, such as MADHOUSES and MADNESSES. A rarer one is MYOBLASTS. In this set, I is the most frequent open letter (63 words). 13 words contain a doubled letter.

Full list 78

Common words

madhousesmadnessesmadrassasmaharishimainmastsmanifestomanifestsmantissasmarquisesmasseusesmedalistsmerganser
madhousesmadnessesmadrassasmaharishimainmastsmanifestomanifestsmantissasmarquisesmasseusesmedalistsmergansermilepostsminibusesmistrustsmongoosesmonodistsmoralistsmotoristsmuralistsmalleusesmalvoisiemelanismsmelanosesmelanosismisfeasormonobasicmorphosismugginsesmydriasismaestososmakefastsmariposasmatrassesmaximisedmaximisesmegadosesmelanistsmelodisedmelodisesmelodistsmemorisedmemorisesmetalisedmetalisesmetalistsmiddorsalmimesisesminimisedminimisesmisbiasedmisbiasesmisparsedmisparsesmispoisedmispoisesmisraisedmisraisesmissensesmistrystsmobilisedmobilisesmodelistsmonadismsmonetisedmonetisesmoondustsmoonrisesmoralisedmoralisesmoralismsmoronismsmotorisedmotorisesmultiusermungoosesmydriasesmyoblasts

About this list

Words
78 (20 common words)
Common example
madhouses
Rare example
myoblasts
Doubled letters
13
Ending in S
57
Most frequent letter
I (63)

Questions

How many 9-letter words matching m_____s__ are there?

78. 20 of them are common words.

What is a common example?

MADHOUSES is among the common words in this set.