12-Letter Words Containing TTO

There are 18 12-letter words that contain TTO. 5 are common words, such as BELLYBUTTONS and BUTTONHOLING. A rarer one is SUBLITTORALS. In this set, U is the most frequent open letter (13 words). 18 words contain a doubled letter.

Full list 18

bellybuttonsbuttonholingcarburettorscottonmouthsgluttonouslyattorneyshipbellbottomedgluttonizingbottomlesslybuttonbushesbuttonholersbuttonhookedcarrottoppedfianchettoedmisbuttoningmuttonfishespittosporumssublittorals

About this list

Words
18 (5 common words)
Common example
bellybuttons
Rare example
sublittorals
Doubled letters
18
Ending in S
8
Most frequent letter
U (13)

Questions

How many 12-letter words containing tto are there?

18. 5 of them are common words.

What is a common example?

BELLYBUTTONS is among the common words in this set.