Pronunciation: [hˈa͡ɪɪŋ] (IPA)
Correct spelling for the English word "hiing" is [hˈa͡ɪɪŋ], [hˈaɪɪŋ], [h_ˈaɪ_ɪ_ŋ] (IPA phonetic alphabet).
Correct spelling for hiing