sisid sisil sisis sisli sison sissi sissu siudi siusi slish sliss slobo slobs sloid slood slooh sloon sloos slosh sloss slubs sluds sluis slush sluss sndio sndub snibs snils snish snobs snood snool snous snub- snubs snush snuss so-ho so-il so-lo so-so sobin sobnd sobno sobol sobon soddo soddu sodhi sodio sodoi sodol sodus sohil sohio sohlu sohni sohos sohub soido soill soils soind soini soins soldi soldo soli- solid solin solis solli solod solon solos solun solus sondu soni- sonid sonin sonnd sonni sono- sonol sonos sonus soodi soold soolu soond soons soosi soshi soshu sosin sosno soss- sossi sosui sosus souho sould souli soulo souls sound sous- ssbul ssion ssssh sssss subbu subin subis subli suboi subos subss subud sudds sudis sudol suhoi suibu suids sulid sulin sulis sulli sulls sulus sunbl sunbs sundo sundu sunhu sunil sunin sunis sunni sunno sunoh sunol sunos sunud sushi susil susso susun susus suudu suuns u-dub u-hid u-n-i u-nii ubisi ubobo udish udol udoll uh-oh uh-uh uhdoh uhhoh uhhuh uhnin uhohs uhuhs uibis uisun uldin uldis ullin ulno- uloid ulous ululu unbid unbud undid undub undun unhid unido unini uninn union unios unish unisi unius unlid unnun unoil unold unsdi unsib unsin unsod unson unsu unsub unsui unsun usdhs usdos ushio ushis ushnu ushus usini usins usnin usobi usson ussun usuli ususi uunsi uusis uuuuu