“MIFFIER” is a valid word. — 15 points Scrabble

firethe event of something burning (often destructive)
firmthe members of a business organization that owns or operates one or more establishments
riffa Berber living in northern Morocco
emiran independent ruler or chieftain (especially in Africa or Arabia)
fifea small high-pitched flute similar to a piccolo; has a shrill tone and is used chiefly to accompany drums in a marching band
mirea soft wet area of low-lying land that sinks underfoot
rifemost frequent or common
mirilittle known Kamarupan languages
fiefa piece of land held under the feudal system
rimeice crystals forming a white deposit (especially on objects outside)
miffa state of irritation or annoyance
reif

rimthe shape of a raised edge of a more or less circular object
ref(sports) the chief official (as in boxing or American football) who is expected to ensure fair play
firnonresinous wood of a fir tree
rema recurring sleep state during which dreaming occurs; a state of rapidly shifting eye movements during sleep
mir
rei
fer
fie
effhave sexual intercourse with
irea strong emotion; a feeling that is oriented toward some real or supposed grievance
emfthe rate at which energy is drawn from a source that produces a flow of electricity in a circuit; expressed in volts
iff
fem
rif

mea state in New England
if
ema quad with a square body
era trivalent metallic element of the rare earth group; occurs with yttrium
rea rare heavy polyvalent metallic element that resembles manganese chemically and is used in some alloys; is obtained as a by-product in refining molybdenum
midestruction of heart tissue resulting from obstruction of the blood supply to the heart muscle
ef

MIFFIER