6-Letter Words Containing SUM

There are 16 6-letter words that contain SUM. 10 are common words, such as ASSUME and GYPSUM. A rarer one is SUMMAS. In this set, A is the most frequent open letter (7 words). 9 words contain a doubled letter.

Full list 16

assumegypsumpossumresumesumachsumacssummedsummersummitsummondorsumomasumsummatsensumsummaesummas

About this list

Words
16 (10 common words)
Common example
assume
Rare example
summas
Doubled letters
9
Ending in S
2
Most frequent letter
A (7)

Questions

How many 6-letter words containing sum are there?

16. 10 of them are common words.

What is a common example?

ASSUME is among the common words in this set.