A CDE Definition
To restore the last editing operation that has taken place. For example, if a segment of text has been deleted or changed, performing an undo will restore the original text. Programs may have several levels of undo, including being able to reconstruct the original data for all edits performed in the current session. See redo and undo send.
On many operating systems and applications, pressing Ctrl-Z on the keyboard undoes the last function. See Control key.
Before/After Your Search Term
|undelivered email||undo send|
|under cover removal||unfriend|
|Undernet||unicast routing protocol|
Terms By Topic
Click any of the following categories for a list of fundamental terms.