Which word means to remove or eliminate?

The term that means to remove or eliminate is "delete." In the context of data management, computing, or document editing, to delete something refers specifically to the action of erasing or taking away information, files, or elements from a system or document.

In contrast, the other terms imply different actions. "Insert" means to add something into a document or data set, "modify" refers to changing or altering existing information without necessarily removing it, and "append" involves adding something to the end of a series or document. Therefore, in this context of understanding actions related to data, "delete" is clearly aligned with the concept of removal or elimination.