There are no US states which have names that end in the letter R.
No U.S. state begins and also ends with the letter R. Rhode Island is the only U.S. state that begins with the letter R.
Some six letter words that start with W and end with R are:waiterwaiverwalkerwanderwasherweaverwelderwelterwickerwinnerwinterwitherwooferwriter
Fair, fear and four are 4 letter words. They begin with f and end with r.
tamertapertaxertatertenortheirtigertruertowertumortutor
Five letter words that start and end with R:radarrazorrecurreferricerriderrigorriverrotorroverrulerrumor