-ene -one eeee eefe eefn eero eeze efen efeo efon efor efze enee eneo ener enez enne ennu eno- enoe enon enue enuf enur enzo eone eore eren erer erez erne erno eroe eron eroo erre erro erur euer eur- eure euro ezer ezuz ezzo feen feer fefe feff fefo fene fenn feof feon fere fern fero ferr feru ferz ffee ffff ffrr ffun fnuf foer fofo fone fono fonz foof foon for- fore forn foro forr foun four free fren freo froe fron frou frue frun fruz fuff fufu fune funf fuor fur- fure furn furo furr fuze fuzz neef neen neer nefe neff nene neno nenu neo- neon neoo nere nerf nero nerr neru nerz neue neuf neun neuo neur neuu nfer nfff nfon nnnn noer noez non- none nonn nono nonu noo- noon nooo noor nor- nore norf norn noro norr noun nour nren nron nuee nuer nuff nune nunn nuno nuon nure nurn nurr nuru nuze o-eo oen- oeno oere oeuf ofen ofer off- offe offo offr offu ofno ofor ofoz ofre ofuz one- onee oneo oner onez onne onno onon onor onoz onue onur onze onzo ooer ooff oone oooo oore ooze ore- oren oreo orer orfe orff orfu orne orno oro- oroe orof oron oror oroz orro orzo orzu ouen ouer oufe ouff oun- oune our- oure ourn ouro ouu- ouze ouzo ozee ozen ozer ozon ozun reef reen refe reff refn refr refu rene renn reno renu renz reof reou rere rero reru reue reuf reuu reze rezu rfef roen roer rofe roff rofo rone rono roof roon roor rooz rore roro roru roue rouf roun rouz roze rozz rrrr rrun ruen ruer ruez rufe ruff rufo rune runf runn runo rure ruro ruru ruun ruze ueno ufer uffe unee unef unen uner unne unno unon unrf unro unuz uofo uone uor- uore ure- urfe urff urne uro- uroo urre urun urur uruz uuen uuno uuuu uzen uzer uzon uzun z-ro zeff zenn zeno zenu zeon zerf zero zeze znen zoff zon- zone zoo- zoon zore zorn zoro zozo zozu zrze zune zunz zuoz zurf zurn zurr zuru zuun zuzu zzzz