dissertation
🇺🇸
/ˌdɪsərˈteɪʃn/
🇬🇧
/ˌdɪsəˈteɪʃn/
a long written work on a specific topic, usually required for a university degree
She spent a year writing her dissertation on climate change for her master's degree.
彼女は修士号のために気候変動に関する論文を1年かけて執筆した。