12-Letter Words Starting With TRO

There are 21 12-letter words that start with TRO. 4 are common words, such as TROLLEYBUSES and TROPOSPHERES. A rarer one is TROTHPLIGHTS. In this set, S is the most frequent open letter (15 words). 4 words contain a doubled letter.

Full list 21

trolleybusestropospherestroublemakertroubleshoottrochelminthtroglodytismtrombidiasistrophozoitestropophiloustropospherictrochanteraltrochanterictrochophorestrophallaxestrophallaxistrophoblaststropicalizedtropicalizestropologicaltropomyosinstrothplights

About this list

Words
21 (4 common words)
Common example
trolleybuses
Rare example
trothplights
Doubled letters
4
Ending in S
12
Most frequent letter
S (15)

Questions

How many 12-letter words starting with tro are there?

21. 4 of them are common words.

What is a common example?

TROLLEYBUSES is among the common words in this set.