12-Letter Words Containing IGO

There are 13 12-letter words that contain IGO. 5 are common words, such as INVIGORATING and INVIGORATION. A rarer one is OLIGOTROPHIC. 2 words contain a doubled letter.

Full list 13

invigoratinginvigorationreinvigoraterigorousnesstrigonometryinvigorativeoligochaetesvigorousnessinvigoratorsoligophagiesoligophagousoligopsoniesoligotrophic

About this list

Words
13 (5 common words)
Common example
invigorating
Rare example
oligotrophic
Doubled letters
2
Ending in S
7

Questions

How many 12-letter words containing igo are there?

13. 5 of them are common words.

What is a common example?

INVIGORATING is among the common words in this set.