Pronunciation: [ɡɹˌatlkjʊlˈe͡ɪʃən] (IPA)
Correct spelling for the English word "Gratlculation" is [ɡɹˌatlkjʊlˈe͡ɪʃən], [ɡɹˌatlkjʊlˈeɪʃən], [ɡ_ɹ_ˌa_t_l_k_j_ʊ_l_ˈeɪ_ʃ_ə_n] (IPA phonetic alphabet).