Not many unfortunately:
fem
fer
ref
rem
rev
ef
em
er
fe
me
re
defacing
afterarguefarefatefearfeatfratgategeargraftgrategreatraftrateteartrueturf
fog, keg, feik, and of are all i can think of...
Lame is one. Came, fame. ice.
ruffle
Hoe, or Hi
safe, I, as, if, a, sea,
Jessie and famous
According to a Scrabble related word site, http://www.wineverygame.com/wbg.php there are 99 acceptable English words of 2 or more letters that can be made it s a f e t p r .
You can make the word defers using all of the letters.Other words that you can make using some of the letters are:DeersDeferFeedsFreedFreesReedsReefsRefedSederDreeFreeSeedSeer
AabbaageaceaddBbaggagebebedbagbeadbeedbeebeccabegbeebabe cabbackbeefbadbadgeCcagedcabbagecabcagecoffeecafeDdefaceddabbeddecadedaddeaddeafEedgeeggFfadefacedfedfadfabfacefadedfeedfeedbackGgabgaggage
According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 1 words with the pattern E-F---F-. That is, eight letter words with 1st letter E and 3rd letter F and 7th letter F. In alphabetical order, they are: enfeoffs