5 letterwoorden:
freon[9], proef[8], oneer[6], repro[6], peren[5], repen[5], opeen[4]
4 letterwoorden:
reef[8], nerf[8], refo[8], roef[8], neef[7], pref[7], prof[7], poef[6], roer[6], eren[5], neer[5], reen[5], nero[5], peer[4], pree[4], reep[4], erop[4], poer[4], roep[4], neep[3], peen[3], pene[3], open[3], poen[3]
3 letterwoorden:
erf[7], fee[6], oef[6], fep[5], fop[5], pof[5], eer[4], ere[4], ree[4], ren[4], oer[4], roe[4], nor[4], een[3], ene[3], nee[3], oen[3], per[3], pre[3], por[3], pro[3], pee[2], nep[2], pen[2], epo[2], nop[2], pon[2]
2 letterwoorden:
of[5], er[3], re[3], or[3], en[2], pr[2], op[1], po[1]