DIFFUSIONISTS

do id if in is it no nu od of oi on os si so ti to un us ut

dif din dis dit don dos dot dui dun duo fid fin fit fon fou fud fun ids iff ifs ins ion its nit nod nos not nus nut ods off oft ons oud out sin sis sit sod son sos sot sou sun tin tis tod ton tui tun udo uns uts

diff difs dino dins dint diss dits doff doit dons doss dost dots duff duit duns dunt duos dust fido fids find fino fins fist fits foin fond fons font foss fuds fund funs fuss info inti into ions nidi nisi nits nodi nods nous nuts offs onus ouds oust outs sift sins sits snit snot sods soft sons sots sous stud stun suds suit suns suss tiff tins tods toff tofu tons toss tuff tuis tuns udon udos undo unit unto