The longest English word you can make out of the letters eefoprs is repose.
Those letters will spell therefore.
soften
soften
Conifer
Some words that use the letters 'd u n e f o u' are:dendodueduneendeonfeudfoefondfonduefoundfunfundnonodnudeodeofononeundoundue
Those letters spell foyer.
Honed
Those letters spell noodle.
fare, fear, fore, rare, rear, roar
The longest are 4 letters: goth, heft, hove, veto, vote
Those letters will spell opera.
me, a, you, I, b j w t d f