9-Letter Words Starting With SUM

There are 18 9-letter words that start with SUM. 10 are common words, such as SUMMARIES and SUMMARILY. A rarer one is SUMPWEEDS. In this set, M is the most frequent open letter (15 words). 16 words contain a doubled letter.

Full list 18

summariessummarilysummarizesummationsummeringsummonerssummoningsummonsedsummonsessumptuoussummativesumptuarysummarisesummatingsummeriersummiteersummitingsumpweeds

About this list

Words
18 (10 common words)
Common example
summaries
Rare example
sumpweeds
Doubled letters
16
Ending in S
5
Most frequent letter
M (15)

Questions

How many 9-letter words starting with sum are there?

18. 10 of them are common words.

What is a common example?

SUMMARIES is among the common words in this set.