This document discusses ellipsis in English linguistics. It defines ellipsis as something understood that is implied but not fully expressed. There are three main types of ellipsis discussed: nominal ellipsis, which is the omission of a noun; verbal ellipsis, which is the omission of a verb; and clausal ellipsis, which is the omission of part or all of a clause. Various sub-types and examples of each type of ellipsis are provided to illustrate how ellipsis works in English sentences.