noun · a structural summary or skeletal plan of the main points for a piece of writing, speech, or project

老师要求我们在动笔写论文之前，先列出一份详细的提纲。

noun · a brief summary or overview of the plot or core contents of a book, film, or play

编剧向导演提交了一份关于新电影的剧情提纲。