Some four letter words that start with R and end with H are:
5 letter words r -h: * reach * roach * ranch * rough
'Hear' is a four letter word beginning with H and ending with R.
A four letter word that starts with J and ends with M: jism.
A four letter word that starts with g and ends with n is gown :)
Czar is a 4 letter word. It begins with C and ends with R.