dissertation betyder på engelska

essay [essays]▼◼◼◼(written composition)
noun
[UK: e.ˈseɪ] [US: e.ˈseɪ]I got an A on my essay. = J'ai obtenu un A à ma dissertation.

dissertation [dissertations]▼◼◼◼(formal exposition of a subject)
noun
[UK: ˌdɪ.sə.ˈteɪʃ.n̩] [US: ˌdɪ.sər.ˈteɪʃ.n̩]