15-Letter Words Matching ___ER__________

There are 261 15-letter words that match ___ER__________. 66 are common words, such as ASSERTIVENESSES and ATHEROSCLEROSES. A rarer one is WATERLESSNESSES. In this set, I is the most frequent open letter (231 words). 55 words contain a doubled letter.

Full list 261

Common words

assertivenessesatherosclerosesatherosclerosischeerlessnessesdepersonalizingdiversificationexperimentationexternalizationfederalizationsgeneralizationsheterogeneitiesheterogeneously
assertivenessesatherosclerosesatherosclerosischeerlessnessesdepersonalizingdiversificationexperimentationexternalizationfederalizationsgeneralizationsheterogeneitiesheterogeneouslyheterosexualityhyperactivitieshypercriticallyhyperthyroidismhyperventilatedhyperventilatesimperfectnessesimperiousnessesinterchangeableinterchangeablyintercollegiateinterconnectinginterconnectioninterdependenceinternalizationinternationallyinterpretationsinterrogativelyinterrogatoriesinterscholasticinterventionisminterventionistliberalizationsmaterializationmiserablenessespaterfamiliasespowerlessnessessuperabundancessuperannuationssuperconductingsuperconductivesuperconductorssupererogationssuperfluousnesssuperimpositionsuperintendencesuperintendencysuperintendentssupernumerariessupersaturatingsupersaturationsuperscriptionssuperstitiouslysuperstructuresunceremoniouslyunderemploymentunderestimatingunderestimationunderhandednessunderprivilegedunderproductionunderstandinglyunderstatementsundervaluationsaftersensationsatheroscleroticdesertificationdeterminatenessdeterminativelyexperientialismexperimentalismexperimentalistexperimentalizeheterochromaticheterochromatinhypercatalectichypercorrectionhyperextensionsimperishabilityimperscriptibleintercommunionsinterconversioninterdependencyinterferometersinterferometricinterminabilityintermittenciesinterpellationsinterpenetratedinterpenetratesinterpersonallyinterrogationalinterrogatorilyinterstratifiedinterstratifieslibertarianismsmineralogicallyobservationallysclerodermatoussuperficialnesssuperheterodynesuperindividualsuperlativenesssupernaturalismsupernaturalistsuperpatriotismsuperstructuralsynergisticallyuncertainnessesunderinvestmentupperclasswomanupperclasswomenadversarinessesallergenicitiesalternativenessarteriographiesdecertificationdeterrabilitiesdivertissementsenterobacterialenterobacteriumenterocolitisesenterogastronesesterificationsetherealizationexoerythrocyticexteriorizationexternalisationgeneralisationsgovernmentalismgovernmentalistgovernmentalizeheteromorphismsheterothallismshyperaesthesiashyperaggressivehypercatabolismhypercoagulablehypercriticismshyperexcitementhyperexcretionshyperfastidioushyperfunctionalhyperimmunizinghyperinflationshyperinsulinismhyperinvolutionhyperlipidemiashypermetabolismhypermobilitieshypermodernistshypermutabilityhyperparasitismhyperpolarizinghyperproductionhyperreactivityhyperresponsivehypersalinitieshypersalivationhypersecretionshypersensitizedhypersensitizeshypersomnolencehyperstimulatedhyperstimulateshypertonicitieshypervelocitieshypervigilancesimpersonalitiesimpersonalizinginheritablenessinteranimationsinterbehavioralintercomparisoninterconvertingintercorrelatedintercorrelatesinterculturallyinterdiffusionsinterdigitatinginterdigitationinterdivisionalinterelectrodesinterelectronicinterestingnessinterfraternityintergenerationintergradationsinterindividualinterinfluencedinterinfluencesinteriorizationinterlacustrineinterlineationsintermediationsintermodulationinternucleotideinteroperativesinterparoxysmalinterperceptualinterpermeatinginterphalangealinterpopulationinterprovincialintersubjectiveintertwinementsinteruniversityintervalometersintervisibilityintervisitationlateralizationsliteralizationsmaterfamiliasesmineralizationsobservabilitiesrecertificationreservationistsreversibilitiessabermetricianssclerotizationssuperablenessessuperabsorbentssuperabundantlysuperactivitiessuperbureaucratsupercalenderedsupercontinentssuperconvenientsuperefficiencysuperelevationssuperencipheredsuperfluiditiessupergovernmentsuperhumanitiessuperinductionssuperinfectionssupermajoritiessupernutritionssuperovulationssuperparasitismsuperphenomenonsuperphosphatessuperplasticitysuperspecialistsuperspectaclessuperstimulatedsuperstimulatessupersubtletiessupersymmetriestemerariousnessunderactivitiesunderemphasizedunderemphasizesunderinflationsundernutritionsunderpublicizedunseriousnessesvenerablenesseswaterlessnesses

About this list

Words
261 (66 common words)
Common example
assertivenesses
Rare example
waterlessnesses
Doubled letters
55
Ending in S
118
Most frequent letter
I (231)

Questions

How many 15-letter words matching ___er__________ are there?

261. 66 of them are common words.

What is a common example?

ASSERTIVENESSES is among the common words in this set.