Definitions

1. verb

to put something at the beginning of a list, sequence, or text

“The programmer decided to prepend a header to the HTML file.”

2. verb

to attach or add something to the beginning of a file or data

“The software allows you to prepend a signature to your emails.”

3. noun

the act of adding something to the beginning of a list or sequence

“The prepend operation took several minutes to complete.”