1. a display of the differences between two versions of a file or text
Usage: computing; informal

1. to compare two files or versions to show what has changed
Usage: computing; informal

Examples

• The diff shows that three lines were added to the code.
• I need to diff these two documents to see what changed.
• Run the diff command to compare the original and updated files.
• The diff output highlighted all the modifications made since the last version.
• She reviewed the diff before merging the pull request.