8 letter words:
prefires13,
reifiers11,
7 letter words:
prefers12,
prefire12,
ferries10,
fierier10,
refires10,
refries10,
reifier10,
reifies10,
perries9,
prisere9,
reprise9,
respire9,
spirier9,
6 letter words:
prefer11,
feirie9,
firers9,
freers9,
freres9,
friers9,
frisee9,
refers9,
refire9,
priers8,
sprier8,
rerise6,
sirree6,
5 letter words:
feres8,
firer8,
fires8,
freer8,
frees8,
frere8,
frier8,
fries8,
frise8,
reefs8,
refer8,
reifs8,
rifer8,
serif8,
peers7,
peise7,
peres7,
peris7,
perse7,
piers7,
prees7,
prese7,
prier7,
pries7,
prise7,
riper7,
ripes7,
speer7,
speir7,
spier7,
spire7,
spree7,
riser5,
serer5,
siree5,
4 letter words:
fees7,
fere7,
fire7,
firs7,
free7,
reef7,
refs7,
reif7,
rife7,
rifs7,
seif7,
serf7,
peer6,
pees6,
pere6,
peri6,
pier6,
pies6,
pree6,
reps6,
ripe6,
rips6,
seep6,
sipe6,
errs4,
ires4,
iris4,
rees4,
reis4,
rise4,
seer4,
sere4,
sire4,
3 letter words:
efs6,
fee6,
fer6,
fes6,
fie6,
fir6,
ifs6,
ref6,
rif6,
pee5,
per5,
pes5,
pie5,
pis5,
psi5,
rep5,
rip5,
sip5,
ere3,
err3,
ers3,
ire3,
ree3,
rei3,
res3,
see3,
sei3,
ser3,
sir3,
sri3,
2 letter words:
ef5,
fe5,
if5,
pe4,
pi4,
er2,
es2,
is2,
re2,
si2,