Any command other than an undo command breaks the sequence of undo
commands. Starting from that moment, the entire sequence of undo
commands that you have just performed are themselves placed into the
-undo record, as a single set of changes. Therefore, to re-apply
-changes you have undone, type @kbd{C-f} or any other command that
-harmlessly breaks the sequence of undoing; then type @kbd{C-/} to undo
-the undo command.
+undo record. Therefore, to re-apply changes you have undone, type
+@kbd{C-f} or any other command that harmlessly breaks the sequence of
+undoing; then type @kbd{C-/} one or more times to undo some of the
+undo commands.
Alternatively, if you want to resume undoing, without redoing
previous undo commands, use @kbd{M-x undo-only}. This is like
dragging the word preceding or containing point forward as well. The
punctuation characters between the words do not move. For example,
@w{@samp{FOO, BAR}} transposes into @w{@samp{BAR, FOO}} rather than
-@samp{@w{BAR FOO,}}.
+@samp{@w{BAR FOO,}}. When point is at the end of the line, it will
+transpose the word before point with the first word on the next line.
@kbd{C-M-t} (@code{transpose-sexps}) is a similar command for
transposing two expressions (@pxref{Expressions}), and @kbd{C-x C-t}
@item C-g
@itemx X
-Quit interactive spell checking, leaving point at the word that was
+Quit interactive spell-checking, leaving point at the word that was
being checked. You can restart checking again afterward with @kbd{C-u
M-$}.
@item x
-Quit interactive spell checking and move point back to where it was
-when you started spell checking.
+Quit interactive spell-checking and move point back to where it was
+when you started spell-checking.
@item q
-Quit interactive spell checking and kill the spell-checker subprocess.
+Quit interactive spell-checking and kill the spell-checker subprocess.
@item ?
Show the list of options.
@cindex @code{ispell} program
@findex ispell-kill-ispell
Once started, the spell-checker subprocess continues
-to run, waiting for something to do, so that subsequent spell checking
+to run, waiting for something to do, so that subsequent spell-checking
commands complete more quickly. If you want to get rid of the
process, use @kbd{M-x ispell-kill-ispell}. This is not usually
necessary, since the process uses no processor time except when you do
dictionary is specified by the variable
@code{ispell-personal-dictionary}. If that is @code{nil}, the
spelling program looks for a personal dictionary in a default
-location.
+location, which is specific to each spell-checker.
@vindex ispell-complete-word-dict
A separate dictionary is used for word completion. The variable
@code{ispell-complete-word-dict} specifies the file name of this
dictionary. The completion dictionary must be different because it
-cannot use root and affix information. For some languages, there
-is a spell checking dictionary but no word completion dictionary.
+cannot use the information about roots and affixes of the words, which
+spell-checking uses to detect variations of words. For some
+languages, there is a spell-checking dictionary but no word completion
+dictionary.
@cindex Flyspell mode
@cindex mode, Flyspell
@findex flyspell-mode
- Flyspell mode is a minor mode that performs automatic spell checking
+ Flyspell mode is a minor mode that performs automatic spell-checking
as you type. When it finds a word that it does not recognize, it
highlights that word. Type @kbd{M-x flyspell-mode} to toggle Flyspell
mode in the current buffer. To enable Flyspell mode in all text mode
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