Answer:
A **"delimiter"** is a character or sequence of characters used to mark the beginning and end of a code segment. Delimiters are commonly used in programming and data representation to define boundaries between different parts of code or data structures. They help parsers and interpreters identify the structure and meaning of the enclosed content. Delimiters can include symbols such as parentheses (), curly braces {}, square brackets [], quotation marks "", and others, depending on the programming or data format being used.