I think I know of a couple:
towed
tower
sawed
bowed
etc, etc.. another would be the word "sewer"
kowtow
Towels
widow
highway
throw, below, shrew
Waltz.
Word. The first letter is w, the second letter is o, the third letter is r and the fourth and last letter is d.
sundown..rundown
Some five letter words with second letter R and fourth letter W are:brawlbrawnbrowncrawlcrowdcrowndrawldrawndrownfrowngrowlgrownprawnprowltrawl
The word is jewel. It is defined as a precious stone.
Five letter words ending in AW are macaw and straw.
Fewer Newer Tower Rower