Some six letter words ending in R are:antleranswerbeaverbetterbitterborderbutlerbuttercratercursorcuterfalterfiltergarterhamperhatterhealerheaterhotterjuniorkinderladderlardermurderporterpotter
Gibraltar ends with an r.
Brass.
Scarbeardearfeargearhearnearpearrearseartearwearyear.
appearbrotherchowderdrifteremperorflickerflustergrinderhoarderintegerjanitorlaundrymufflerneitherprinterremoverslenderteachervaulterwhisperyounger
spider
runners
sheriff
certain
afaragarajaraverbearbeerbierblurboarboorburrcharcoirczardeardeerdoerdoordourdyeremireverewerfairfearfourgeargoerhairhearheirhoarhoerhourjeerlairleerliarlourmoornearodoroverpairpearpeerpierpoorpourpurrrearroarscarsearseerslursoarsoursparspurstarstirteartiertouruserveerwearweerweirwhiryearyour
This alloy is brass.
fodder! fatter