ASTRONAVIGATION

\ˌastɹənˌavɪɡˈe͡ɪʃən], \ˌastɹənˌavɪɡˈe‍ɪʃən], \ˌa_s_t_ɹ_ə_n_ˌa_v_ɪ_ɡ_ˈeɪ_ʃ_ə_n]\
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2006 - WordNet 3.0
By Princeton University
 
2011 - English Dictionary Database
By DataStellar Co., Ltd