Pronunciation: [bˈɔ͡ɪtɹə͡ʊz] (IPA)
Correct spelling for the English word "boytrose" is [bˈɔ͡ɪtɹə͡ʊz], [bˈɔɪtɹəʊz], [b_ˈɔɪ_t_ɹ_əʊ_z] (IPA phonetic alphabet).
Correct spelling for boytrose