7 letter words:
excimer18,
5 letter words:
cimex16,
mirex14,
mixer14,
remex14,
remix14,
xeric14,
creme9,
crime9,
4 letter words:
exec13,
emic8,
merc8,
mice8,
cere6,
cire6,
emir6,
mere6,
mire6,
rice6,
rime6,
3 letter words:
mix12,
rex10,
mic7,
cee5,
eme5,
ice5,
mir5,
rec5,
rem5,
rim5,
ere3,
ire3,
ree3,
rei3,
2 letter words:
ex9,
xi9,
em4,
me4,
mi4,
er2,
re2,