7-Letter Words Matching ___M_U_

There are 28 7-letter words that match ___M_U_. 15 are common words, such as ALUMNUS and BRIMFUL. A rarer one is SLUMGUM. 4 words contain a doubled letter.

Full list 28

Common words

alumnusbrimfulcadmiumclamourenamourfermiumglamourgrampusharmfulholmiumhoumousmuumuus
alumnusbrimfulcadmiumclamourenamourfermiumglamourgrampusharmfulholmiumhoumousmuumuuspremiumrhombusroomfulchymousgrumousgummousplumbumspumousagamousbrumouscormouscrumbumdoomfulformfulrhamnusslumgum

About this list

Words
28 (15 common words)
Common example
alumnus
Rare example
slumgum
Doubled letters
4
Ending in S
13

Questions

How many 7-letter words matching ___m_u_ are there?

28. 15 of them are common words.

What is a common example?

ALUMNUS is among the common words in this set.