A critical or explanatory commentary or analysis.
Information relating to the genetic structure of sequences of bases.
Metadata added to a document or program.
A comment added to a text.
The process of writing such comment or commentary.
An essay or speech in which any topic is discussed in detail.
The abandonment of an unwanted child.
An exhibition, especially of goods, artwork or cultural displays to the public.
The act or process of declaring or describing something through either speech or writing; the portions and aspects of a piece of writing that exist mainly to describe the setting, characters and other non-plot elements.
An opening section in fiction, in which background information about the characters, events or setting is conveyed.
The opening section of a movement in sonata form; the opening section of a fugue.
The action of exposing something to something, such as skin to the sunlight.