What do you call the insert?

What you call the insert depends on context and type of insert, as insert is generic term for something inserted, but specific names vary by industry. In newspaper or magazine, insert is called advertising insert, flyer, circular, supplement, or free standing insert. In fireplace, insert is called fireplace insert, wood insert, gas insert, or electric insert. In shoes, insert is called insole, orthotic insert, arch support, or shoe insert. In packaging, insert is called package insert, product insert, or informational insert. In database, insert is called INSERT statement or insertion. In printing, insert is called tip in. In general, insert may be called inclusion, addition, or implantation. So you call insert by specific name like newspaper insert, shoe insert, fireplace insert, or database insert depending on what is inserted where, with more descriptive term indicating function, such as promotional insert for advertising, orthotic insert for foot support, or hearth insert for fireplace efficiency improvement.