noune nouni nouri nroff nu-nu nueno numbi numen numme nummi nunni nunon nunun nuoro nure- nurin nurme nurmi nurmo nurri nurun o-bon o-fer o-r-b obeie obimo obion oboro oboue obreb obren obrne obrom oefun oeiro oenin oeno- oenoe oerme oerum offen offer offie offin offir offof offon offre offun ofmen ofone ofono ofori oforn ofour ofrum oimee oino- oinoi oiron ombe- omber ombre omemo omero omine omino ommen ommin omner omni- omnio omoon omore omoro omron onebe onefm oneif onein oneir onemi onemo onene oneno oneof oneon oneor onere onero oneum onfim onibi onin onine oniom onion onir- oniro onium onmun onne- onnen onoff onone onoon onore onorn onour onrio oo-er oofem ooioo oonin ooooo oorie oouen orbom orebi oreo- oreoi orere orero orfei orfeo orfeu orfoe orfor oribe oribi orino orion orium ormen ormer ormur ornee orni- ornon orobe orobo oroer orome oromo orono orrin orrum orube orune oruro oueme ouene ouir- oumer ouoro oure- ouren ourie ourne ourno rebbe reber rebon rebun reefe reeme reemo reene reere refen refer reffe reffo refme refne reiff reime reine reino reinu remee remen remer remi- remon remor remou remue remuf renee rener renfe reni- renie renin renir renne renno reno- renou renri reome reone rere- reree rerir rerob rerum rerun reuen reuer reuin reuir reume reune ri-fi ribbi riber ribie ribin ribno ribo- ribon riefe riein rieni rifer riife rimbo rimer rimmi rimon rimou rimur riner rinne rione rioni ririe riuen riuer rmnmn ro-ro robbe robbi robbo roben rober robie robin robo- robon robor robun robur roero roffe rofor roine rombe romen romeo romer romfo romie romme romni romon ronee ronen roneo ronin ronne ronno rooer roofe roome roomu roone roore rooue rorbu rorem rorer rouen rouer roufe roume roumi roumm roune roure rubbi rubee ruben ruber rubie rubim rubin rubio rubof rubon rubor ruere rueun ruffe ruffo rufi- rufie rufio rufo- ruine ruino ruiru rumbe rumbo rumen rumer rumin rummi rummo rummu rumor runer runin runne runo- runof runon ruomu u-men u-n-i u-nii ubeen uber- ubirr ubobo ubume uenmr ufere uffie ufofu ufone uforb uinen uiro umbe- umber umbre umbri umbro umeer umeme umien uminn umiri umore umour unfoe unfun unfur unibe unifi unini uninn union unmee unnim unnun unnur unoor unorn unref unrun unurn uouee ureme ureo- uribe urien urin- urine uromi uroob urour urubu urumi ururi uuuuu