Pronunciation: [dɪkˈɑːtə͡ʊ] (IPA)
Correct spelling for the English word "decato" is [dɪkˈɑːtə͡ʊ], [dɪkˈɑːtəʊ], [d_ɪ_k_ˈɑː_t_əʊ] (IPA phonetic alphabet).