undo(redirected from undos)
Also found in: Dictionary, Thesaurus, Acronyms.
undoTo 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.
Copyright © 1981-2019 by The Computer Language Company Inc. All Rights reserved. THIS DEFINITION IS FOR PERSONAL USE ONLY. All other reproduction is strictly prohibited without permission from the publisher.