12-Letter Words Containing SUM

There are 28 12-letter words that contain SUM. 11 are common words, such as CONSUMERISMS and CONSUMERISTS. A rarer one is SUMMERSAULTS. In this set, O is the most frequent open letter (23 words). 13 words contain a doubled letter.

Full list 28

Common words

consumerismsconsumeristsconsummatelyconsummatingconsummationconsumptionsconsumptivespresumptionspresumptuoussummerhousesunassuminglybreastsummer
consumerismsconsumeristsconsummatelyconsummatingconsummationconsumptionsconsumptivespresumptionspresumptuoussummerhousesunassuminglybreastsummerinconsumablesubsumptionsanticonsumerassumabilityconsumershipconsummativeconsummatorsconsummatoryinconsumablynonconsumersnonconsumingoverconsumedoverconsumesreassumptionsummarizablesummersaults

About this list

Words
28 (11 common words)
Common example
consumerisms
Rare example
summersaults
Doubled letters
13
Ending in S
12
Most frequent letter
O (23)

Questions

How many 12-letter words containing sum are there?

28. 11 of them are common words.

What is a common example?

CONSUMERISMS is among the common words in this set.