Cork
A four letter word with RA in the middle: bran.
Four letter words with o e in the middle are: coeddoerdoesfoesgoergoeshoedhoerhoesJoeljoesjoeykoelnoelnoespoempoetroestoeatoedtoesvoeswoeszoea
Bath
afar
Amid
feudll
errs
the answer is puts
Sele
Afar is a four letter word with f and a as the 2 middle letters in that order.
that what when thus then then than
etch, itch