cocco- cococo cocoon coggon concon condog condon conggo congoo congou connon conoco coocoo coodoo coudun cuddon dododo dogood dogoon dondon dongco dongon dongou doudou duddon dudong dugdug dugong dundun dungog dungon dungun dunoon goddod gongdu gonogo good-o googoo goudon goudou gounod gugong guncon gundog gunong gunung guocun ndungu ngondo ngongo ngundu nnundu no-doc no-god nogood non-no noncon nondog nongod nonodd nonono nonoon noonoo nounou odongo ogongo ongood oooooo oudong ucuncu ungogo ungood