12-Letter Words Containing ERT

There are 104 12-letter words that contain ERT. 43 are common words, such as ADVERTISINGS and ADVERTORIALS. A rarer one is VESPERTILIAN. In this set, I is the most frequent open letter (83 words). 22 words contain a doubled letter.

Full list 104

Common words

advertisingsadvertorialsafterthoughtanimadvertedappertainingascertainingcertificatedcertificatesconcertinaedconcertizingcontrovertedconvertibles
advertisingsadvertorialsafterthoughtanimadvertedappertainingascertainingcertificatedcertificatesconcertinaedconcertizingcontrovertedconvertiblescountertenorcovertnessesdisconcerteddissertationentertainersentertainingexpertnesseshypertensionhypertensivehyperthyroidimpertinenceinadvertenceincertitudesintertwininginvertebratelibertariansneanderthalsneverthelessoverexertingoverexertionoverthinkingoverthrowingpertinaciousperturbationreassertionsreconvertingreinsertionssupertankersunadvertisedundertakingsunfertilizedconcertgoersdessertspoondiverticulumdivertimentidivertimentofertilizablehyperthermiahypertrophicinadvertencyindivertibleinterfertileintertexturenonassertiveovertaxationovertrumpingpertinenciesperturbativeperturbinglypreconcertedstertorouslyverticillateweathertightadvertenciesconcertgoingcontrovertercountertradecountertrenddecertifyingdissertatingdissertatorsdiverticularfootlambertshyperthermichypertypicalimpertinencyinexpertnessinterconvertintertidallyintertillageintertillingintertwistedintrovertinglibertinageslibertinismsmalapertnessmillilambertnoncertifiedoverassertedovertightensovertrainingovertreatingovertrimmingprecertifiedprecertifiesprepubertiespropertylessrecertifyingundertenantsunderthrustsverticalnessvespertilian

About this list

Words
104 (43 common words)
Common example
advertisings
Rare example
vespertilian
Doubled letters
22
Ending in S
32
Most frequent letter
I (83)

Questions

How many 12-letter words containing ert are there?

104. 43 of them are common words.

What is a common example?

ADVERTISINGS is among the common words in this set.