15-Letter Words Starting With SEM

There are 13 15-letter words that start with SEM. 1 are common words, such as SEMITRANSPARENT and SEMIABSTRACTION. A rarer one is SEMITRANSLUCENT. In this set, I is the most frequent open letter (13 words). 3 words contain a doubled letter.

Full list 13

semitransparentsemiabstractionsemicentennialssemicolonialismsemicrystallinesemicylindricalsemidocumentarysemilogarithmicsemipornographysemiretirementssemisubmersiblesemiterrestrialsemitranslucent

About this list

Words
13 (1 common words)
Common example
semitransparent
Rare example
semitranslucent
Doubled letters
3
Ending in S
2
Most frequent letter
I (13)

Questions

How many 15-letter words starting with sem are there?

13. 1 of them are common words.

What is a common example?

SEMITRANSPARENT is among the common words in this set.