Pronunciation: [ɡɹˈə͡ʊz] (IPA)
Correct spelling for the English word "grose" is [ɡɹˈə͡ʊz], [ɡɹˈəʊz], [ɡ_ɹ_ˈəʊ_z] (IPA phonetic alphabet).
Correct spelling for grose