7 letter words:
cinerin9,
eirenic9,
6 letter words:
irenic8,
eerier6,
5 letter words:
cirri7,
crier7,
icier7,
nicer7,
niece7,
ricer7,
ricin7,
eerie5,
inner5,
renin5,
4 letter words:
zinc15,
zein13,
zine13,
cere6,
cine6,
cire6,
nice6,
rice6,
erne4,
nene4,
nine4,
rein4,
3 letter words:
zee12,
zin12,
cee5,
ice5,
rec5,
ere3,
ern3,
err3,
inn3,
ire3,
nee3,
ree3,
rei3,
rin3,
2 letter words:
en2,
er2,
in2,
ne2,
re2,