12-Letter Words Containing EF

There are 187 12-letter words that contain EF. 90 are common words, such as AFTEREFFECTS and BATTLEFIELDS. A rarer one is VOICEFULNESS. In this set, I is the most frequent open letter (137 words). 73 words contain a doubled letter.

Full list 187

Common words

aftereffectsbattlefieldsbattlefrontsbefuddlementbenefactionsbenefactressbeneficencesbeneficentlybeneficiallycoefficientscuttlefishesdefalcations
aftereffectsbattlefieldsbattlefrontsbefuddlementbenefactionsbenefactressbeneficencesbeneficentlybeneficiallycoefficientscuttlefishesdefalcationsdeficienciesdefinitenessdefinitivelydeflationarydefoliationsdeformationseffectuatingeffeminacieseffeminatelyeffervescenteffervescingeffetenessesefficienciesefflorescenteffortlesslyeffronterieseffusivenessfirefightersfirefightingforcefulnessgoosefleshesgracefulnessgratefulnesshandkerchiefhenceforwardindefeasibleindefeasiblyindefensibleindefensiblyindefinitelyineffabilityinefficaciesinefficiencyliquefactionmalefactionsmaleficencesneckerchiefsnoneffectivepeacefulnessprefabricatepreferentialprizefighterpurposefullyputrefactionputrefactiverarefactionsredefinitionrefashioningreflectivelyreformationsreformattingreformulatedreformulatesrefortifyingrefractoriesrefreshinglyrefreshmentsrefrigerantsrefrigeratedrefrigeratesrefrigeratorrefurbishingrefurnishingremorsefullyrevengefullyruefulnessesshamefacedlyshamefulnessspaceflightsspitefullestspitefulnessstupefactiontastefulnessungracefullyungratefullyusefulnesseswastefulnesswoefulnessesbirefringentcalefactionsclosefittingdefenestratedefibrillatedefinitionaldeflagrationdeflationistdeflocculatedefraudationeffectualityeffectuationeffeminizingefflorescingglobeflowershereinbeforehousefathersindefectibleineffaceableirreformableirrefragableirrefragablyliquefacientliquefactivepasqueflowerprefectorialpridefulnessrangefindersreflationaryreflectancesreflectionalreflectivityrefractionalrefractivelyrefractivityrefractorilystupefacientstupefyinglyunreflectingunreflectiveunremorsefulvengefulnessbeneficiatedbeneficiatesbonefishingscandlefishescodefendantscycloolefinsdefeminizingdefibrinateddefibrinatesdefinitizingdeflagratingdeflorationsdeforcementsdeformalizeddeformalizesdespitefullyefficacitiesgracefullestgratefullestguilefulnesshasenpfefferhorsefleshesindefectiblyindefinablesineffaceablyinefficientsmisreferencemisreferringneedlefishesnondeformingpaddlefishespeacefullestprefinancingprefocussingpreformationpreformattedpreformulatereflectorizerefoundationrefrainmentsrefresheningrefurbishersreliquefyingrubefacientssprachgefuhlsurefootedlytumefactionstypefounderstypefoundingultracarefulultraleftismultraleftistultrarefinedundefoliatedvoicefulness

About this list

Words
187 (90 common words)
Common example
aftereffects
Rare example
voicefulness
Doubled letters
73
Ending in S
72
Most frequent letter
I (137)

Questions

How many 12-letter words containing ef are there?

187. 90 of them are common words.

What is a common example?

AFTEREFFECTS is among the common words in this set.