13-Letter Words Starting With SEM

There are 25 13-letter words that start with SEM. 6 are common words, such as SEMIAUTOMATIC and SEMICONDUCTOR. A rarer one is SEMITONICALLY. In this set, I is the most frequent open letter (25 words). 4 words contain a doubled letter.

Full list 25

Common words

semiautomaticsemiconductorsemiconscioussemifinalistssemimonthliessemipermeablesemicivilizedsemiclassicalsemipermanentsemipoliticalsemiporcelainsemireligious
semiautomaticsemiconductorsemiconscioussemifinalistssemimonthliessemipermeablesemicivilizedsemiclassicalsemipermanentsemipoliticalsemiporcelainsemireligioussempiternallysemasiologiessemiariditiessemidiameterssemiempiricalsemievergreensemilegendarysemiliteratessemiparasitessemiparasiticsemisedentarysemisyntheticsemitonically

About this list

Words
25 (6 common words)
Common example
semiautomatic
Rare example
semitonically
Doubled letters
4
Ending in S
9
Most frequent letter
I (25)

Questions

How many 13-letter words starting with sem are there?

25. 6 of them are common words.

What is a common example?

SEMIAUTOMATIC is among the common words in this set.