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-rw-r--r--doc/emacs/killing.texi2
1 files changed, 2 insertions, 0 deletions
diff --git a/doc/emacs/killing.texi b/doc/emacs/killing.texi
index 834a5c6159d..6b1f35e6158 100644
--- a/doc/emacs/killing.texi
+++ b/doc/emacs/killing.texi
@@ -727,6 +727,8 @@ them. Rectangle commands are useful with text in multicolumn formats,
and for changing text into or out of such formats.
@cindex mark rectangle
+@cindex region-rectangle
+@cindex rectangular region
To specify a rectangle for a command to work on, set the mark at one
corner and point at the opposite corner. The rectangle thus specified
is called the @dfn{region-rectangle}. If point and the mark are in