--- a/runtime/doc/builtin.txt
+++ b/runtime/doc/builtin.txt
@@ -2207,7 +2207,7 @@ environ()						*environ()*
 
 err_teapot([{expr}])					*err_teapot()*
 		Produce an error with number 418, needed for implementation of
-		RFC 2325.
+		RFC 2324.
 		If {expr} is present and it is TRUE error 503 is given,
 		indicating that coffee is temporarily not available.
 		If {expr} is present it must be a String.
@@ -6786,7 +6786,7 @@ printf({fmt}, {expr1} ...)				*printf()*
 							*printf-$*
 		In certain languages, error and informative messages are
 		more readable when the order of words is different from the
-		corresponding message in English. To accomodate translations
+		corresponding message in English. To accommodate translations
 		having a different word order, positional arguments may be
 		used to indicate this. For instance: >
 

--- a/runtime/doc/insert.txt
+++ b/runtime/doc/insert.txt
@@ -127,7 +127,7 @@ CTRL-R {register}				*i_CTRL-R*
 			'/'	the last search pattern
 			':'	the last command-line
 			'.'	the last inserted text
-                                                       *i_CTRL-R_-*
+							*i_CTRL-R_-*
 			'-'	the last small (less than a line) delete
 				register. This is repeatable using |.| since
 				it remembers the register to put instead of

--- a/runtime/doc/windows.txt
+++ b/runtime/doc/windows.txt
@@ -189,7 +189,7 @@ CTRL-W v						*CTRL-W_v*
 		it doesn't!
 
 CTRL-W n						*CTRL-W_n*
-CTRL-W CTRL_N						*CTRL-W_CTRL-N*
+CTRL-W CTRL-N						*CTRL-W_CTRL-N*
 :[N]new [++opt] [+cmd]					*:new*
 		Create a new window and start editing an empty file in it.
 		Make new window N high (default is to use half the existing

--- a/runtime/ftplugin/zig.vim
+++ b/runtime/ftplugin/zig.vim
@@ -39,7 +39,7 @@ endif
 
 let &l:define='\v(<fn>|<const>|<var>|^\s*\#\s*define)'
 
-" Safety check: don't execute zip from current directory
+" Safety check: don't execute zig from current directory
 if !exists('g:zig_std_dir') && exists('*json_decode') &&
     \  executable('zig') && get(g:, 'zig_exec', get(g:, 'plugin_exec', 0))
     \ && (fnamemodify(exepath("zig"), ":p:h") != s:tmp_cwd

--- a/src/Makefile
+++ b/src/Makefile
@@ -345,7 +345,7 @@ CClink = $(CC)
 # --enable-gui=gtk or leave out --enable-gnome-check.
 #
 # GNOME makes sense only for GTK+ 2.  Avoid use of --enable-gnome-check with
-# GTK+ 3 build, as the functionality of GNOME is already incooperated into
+# GTK+ 3 build, as the functionality of GNOME is already incorporated into
 # GTK+ 3.
 #
 # If the selected GUI isn't found, the GUI is disabled automatically

--- a/src/errors.h
+++ b/src/errors.h
@@ -3516,7 +3516,7 @@ EXTERN char e_invalid_format_specifier_s
 EXTERN char e_member_str_type_mismatch_expected_str_but_got_str[]
 	INIT(= N_("E1406: Member \"%s\": type mismatch, expected %s but got %s"));
 EXTERN char e_method_str_type_mismatch_expected_str_but_got_str[]
-	INIT(= N_("E1407: Member \"%s\": type mismatch, expected %s but got %s"));
+	INIT(= N_("E1407: Method \"%s\": type mismatch, expected %s but got %s"));
 EXTERN char e_aptypes_is_null_nr_str[]
 	INIT(= "E1408: Internal error: ap_types or ap_types[idx] is NULL: %d: %s");
 EXTERN char e_interface_static_direct_access_str[]

--- a/src/ex_cmds.c
+++ b/src/ex_cmds.c
@@ -2647,9 +2647,9 @@ do_ecmd(
     }
 
 
-     // End Visual mode before switching to another buffer, so the text can be
-     // copied into the GUI selection buffer.
-     // Careful: may trigger ModeChanged() autocommand
+    // End Visual mode before switching to another buffer, so the text can be
+    // copied into the GUI selection buffer.
+    // Careful: may trigger ModeChanged() autocommand
 
     // Should we block autocommands here?
     reset_VIsual();

--- a/src/findfile.c
+++ b/src/findfile.c
@@ -48,8 +48,8 @@
  *
  * ATTENTION:
  * ==========
- *	Also we use an allocated search context here, this functions are NOT
- *	thread-safe!!!!!
+ *	Also we use an allocated search context here, these functions are NOT
+ *	thread-safe!
  *
  *	To minimize parameter passing (or because I'm to lazy), only the
  *	external visible functions get a search context as a parameter. This is

--- a/src/gui_gtk_x11.c
+++ b/src/gui_gtk_x11.c
@@ -4002,8 +4002,8 @@ gui_mch_init(void)
     }
 
     // Real windows can get focus ... GtkPlug, being a mere container can't,
-    // only its widgets.  Arguably, this could be common code and we not use
-    // the window focus at all, but let's be safe.
+    // only its widgets.  Arguably, this could be common code and we do not
+    // use the window focus at all, but let's be safe.
     if (gtk_socket_id == 0)
     {
 	g_signal_connect(G_OBJECT(gui.mainwin), "focus-out-event",

--- a/src/insexpand.c
+++ b/src/insexpand.c
@@ -3789,7 +3789,7 @@ ins_compl_get_exp(pos_T *ini)
 	st.found_all = FALSE;
 	st.ins_buf = curbuf;
 	vim_free(st.e_cpt_copy);
-	// Make a copy of 'complete', if case the buffer is wiped out.
+	// Make a copy of 'complete', in case the buffer is wiped out.
 	st.e_cpt_copy = vim_strsave((compl_cont_status & CONT_LOCAL)
 					    ? (char_u *)"." : curbuf->b_p_cpt);
 	st.e_cpt = st.e_cpt_copy == NULL ? (char_u *)"" : st.e_cpt_copy;

--- a/src/main.c
+++ b/src/main.c
@@ -1548,7 +1548,7 @@ main_loop(
 		    && !skip_term_loop)
 	    {
 		// If terminal_loop() returns OK we got a key that is handled
-		// in Normal model.  With FAIL we first need to position the
+		// in Normal mode.  With FAIL we first need to position the
 		// cursor and the screen needs to be redrawn.
 		if (terminal_loop(TRUE) == OK)
 		    normal_cmd(&oa, TRUE);

--- a/src/mbyte.c
+++ b/src/mbyte.c
@@ -4050,7 +4050,7 @@ utf_allow_break_before(int cc)
 	0x2021, // ‡ double dagger
 	0x2026, // … horizontal ellipsis
 	0x2030, // ‰ per mille sign
-	0x2031, // ‱ per then thousand sign
+	0x2031, // ‱ per ten thousand sign
 	0x203c, // ‼ double exclamation mark
 	0x2047, // ⁇ double question mark
 	0x2048, // ⁈ question exclamation mark

--- a/src/mouse.c
+++ b/src/mouse.c
@@ -2162,7 +2162,7 @@ retnomove:
 do_mousescroll_horiz(long_u leftcol)
 {
     if (curwin->w_p_wrap)
-	return FALSE;  // no wrapping, no scrolling
+	return FALSE;  // no horizontal scrolling when wrapping
 
     if (curwin->w_leftcol == (colnr_T)leftcol)
 	return FALSE;  // already there

--- a/src/po/README.txt
+++ b/src/po/README.txt
@@ -41,7 +41,7 @@ You might have to do the commands manual
 WHEN THERE IS A MISTAKE
 
 If you find there is a mistake in one of the translations, please report this
-to the maintainer of the translation.  His/her E-mail address is in the
+to the maintainer of the translation.  His/her e-mail address is in the
 comments at the start of the file.  You can also see this with the ":messages"
 command in Vim when the translation is being used.
 

--- a/src/po/README_mingw.txt
+++ b/src/po/README_mingw.txt
@@ -60,7 +60,7 @@ the same as in the Unix case, only the c
 
     There is one special message:
 	msgid "Messages maintainer: The Vim Project"
-    You should include your name and E-mail address instead, for example:
+    You should include your name and e-mail address instead, for example:
 	msgstr "Berichten �bersetzt bei: John Doe <john@doe.org>"
 
 (3) Clean up

--- a/src/sound.c
+++ b/src/sound.c
@@ -17,7 +17,7 @@
 
 static long	    sound_id = 0;
 
-// soundcb_T is typdef'ed in proto/sound.pro
+// soundcb_T is typedef'ed in proto/sound.pro
 
 struct soundcb_S {
     callback_T	snd_callback;

--- a/src/term.c
+++ b/src/term.c
@@ -6655,7 +6655,7 @@ replace_termcodes(
 #ifdef FEAT_EVAL
 	    /*
 	     * Change <SID>Func to K_SNR <script-nr> _Func.  This name is used
-	     * for script-locla user functions.
+	     * for script-local user functions.
 	     * (room: 5 * 6 = 30 bytes; needed: 3 + <nr> + 1 <= 14)
 	     * Also change <SID>name.Func to K_SNR <import-script-nr> _Func.
 	     * Only if "name" is recognized as an import.

--- a/src/testdir/test_autocmd.vim
+++ b/src/testdir/test_autocmd.vim
@@ -2025,8 +2025,8 @@ endfunc
 " Test for BufUnload autocommand that unloads all the other buffers
 func Test_bufunload_all()
   let g:test_is_flaky = 1
-  call writefile(['Test file Xxx1'], 'Xxx1', 'D')"
-  call writefile(['Test file Xxx2'], 'Xxx2', 'D')"
+  call writefile(['Test file Xxx1'], 'Xxx1', 'D')
+  call writefile(['Test file Xxx2'], 'Xxx2', 'D')
 
   let content =<< trim [CODE]
     func UnloadAllBufs()

--- a/src/testdir/test_channel.vim
+++ b/src/testdir/test_channel.vim
@@ -524,7 +524,7 @@ func Test_connect_waittime()
   let start = reltime()
   let handle = ch_open('localhost:9876', s:chopt)
   if ch_status(handle) != "fail"
-    " Oops, port does exists.
+    " Oops, port exists.
     call ch_close(handle)
   else
     let elapsed = reltime(start)
@@ -538,7 +538,7 @@ func Test_connect_waittime()
   try
     let handle = ch_open('localhost:9867', {'waittime': 500})
     if ch_status(handle) != "fail"
-      " Oops, port does exists.
+      " Oops, port exists.
       call ch_close(handle)
     else
       " Failed connection should wait about 500 msec.  Can be longer if the

--- a/src/testdir/test_edit.vim
+++ b/src/testdir/test_edit.vim
@@ -1219,7 +1219,7 @@ func Test_edit_LEFT_RIGHT()
 endfunc
 
 func Test_edit_MOUSE()
-  " This is a simple test, since we not really using the mouse here
+  " This is a simple test, since we're not really using the mouse here
   CheckFeature mouse
   10new
   call setline(1, range(1, 100))
@@ -1797,7 +1797,7 @@ func Test_edit_charconvert()
   close!
   set charconvert&
 
-  " 'charconvert' function doesn't create a output file
+  " 'charconvert' function doesn't create an output file
   func Cconv1()
   endfunc
   set charconvert=Cconv1()

--- a/src/testdir/test_functions.vim
+++ b/src/testdir/test_functions.vim
@@ -2911,7 +2911,7 @@ func Test_state()
   call term_sendkeys(buf, getstate)
   call WaitForAssert({-> assert_match('state: mSc; mode: n', term_getline(buf, 6))}, 1000)
 
-  " A operator is pending
+  " An operator is pending
   call term_sendkeys(buf, ":call RunTimer()\<CR>y")
   call TermWait(buf, 25)
   call term_sendkeys(buf, "y")

--- a/src/testdir/test_highlight.vim
+++ b/src/testdir/test_highlight.vim
@@ -878,7 +878,7 @@ func Test_highlight_default()
   hi clear
 endfunc
 
-" Test for 'ctermul in a highlight group
+" Test for 'ctermul' in a highlight group
 func Test_highlight_ctermul()
   CheckNotGui
   call assert_notmatch('ctermul=', HighlightArgs('Normal'))

--- a/src/testdir/test_listdict.vim
+++ b/src/testdir/test_listdict.vim
@@ -373,7 +373,7 @@ func Test_dict_big()
   endtry
   call assert_equal('Vim(let):E716: "1500"', str)
 
-  " lookup each items
+  " lookup each item
   for i in range(1500)
     call assert_equal(3000 - i, d[i])
   endfor

--- a/src/testdir/test_mksession.vim
+++ b/src/testdir/test_mksession.vim
@@ -568,7 +568,7 @@ endfunc
 func Test_mkview_terminal_windows()
   CheckFeature terminal
 
-  " create two window on the same terminal to check this is handled OK
+  " create two windows on the same terminal to check this is handled OK
   terminal
   let term_buf = bufnr()
   exe 'sbuf ' .. term_buf

--- a/src/testdir/test_normal.vim
+++ b/src/testdir/test_normal.vim
@@ -380,7 +380,7 @@ func Test_normal06_formatprg()
 endfunc
 
 func Test_normal07_internalfmt()
-  " basic test for internal formmatter to textwidth of 12
+  " basic test for internal formatter to textwidth of 12
   let list=range(1,11)
   call map(list, 'v:val."    "')
   10new
@@ -2582,7 +2582,7 @@ func Test_normal33_g_cmd2()
   exe "norm! G0\<c-v>4k4ly"
   exe "norm! gvood"
   call assert_equal(['', 'abfgh', 'abfgh', 'abfgh', 'fgh', 'fgh', 'fgh', 'fgh', 'fgh'], getline(1,'$'))
-  " gv cannot be used  in operator pending mode
+  " gv cannot be used in operator pending mode
   call assert_beeps('normal! cgv')
   " gv should beep without a previously selected visual area
   new

--- a/src/testdir/test_substitute.vim
+++ b/src/testdir/test_substitute.vim
@@ -1448,7 +1448,7 @@ func Test_substitute_expr_switch_win()
   let bufnr = bufnr('%')
   put ="abcdef"
   silent! s/\%')/\=R()
-  call assert_fails(':%s/./\=R()/g', 'E565')
+  call assert_fails(':%s/./\=R()/g', 'E565:')
   delfunc R
   exe bufnr .. "bw!"
 endfunc

--- a/src/testdir/test_vim9_class.vim
+++ b/src/testdir/test_vim9_class.vim
@@ -1884,7 +1884,7 @@ def Test_class_implements_interface()
         enddef
       endclass
   END
-  v9.CheckScriptFailure(lines, 'E1407: Member "IsEven": type mismatch, expected func(number): bool but got func(number): string')
+  v9.CheckScriptFailure(lines, 'E1407: Method "IsEven": type mismatch, expected func(number): bool but got func(number): string')
 
   lines =<< trim END
       vim9script
@@ -1897,7 +1897,7 @@ def Test_class_implements_interface()
         enddef
       endclass
   END
-  v9.CheckScriptFailure(lines, 'E1407: Member "IsEven": type mismatch, expected func(number): bool but got func(bool): bool')
+  v9.CheckScriptFailure(lines, 'E1407: Method "IsEven": type mismatch, expected func(number): bool but got func(bool): bool')
 
   lines =<< trim END
       vim9script
@@ -1910,7 +1910,7 @@ def Test_class_implements_interface()
         enddef
       endclass
   END
-  v9.CheckScriptFailure(lines, 'E1407: Member "IsEven": type mismatch, expected func(number): bool but got func(number, ...list<number>): bool')
+  v9.CheckScriptFailure(lines, 'E1407: Method "IsEven": type mismatch, expected func(number): bool but got func(number, ...list<number>): bool')
 
   # access superclass interface members from subclass, mix variable order
   lines =<< trim END
@@ -4576,7 +4576,7 @@ def Test_abstract_method()
       enddef
     endclass
   END
-  v9.CheckScriptFailure(lines, 'E1407: Member "Foo": type mismatch, expected func(string, number): list<number> but got func(number, string): list<string>')
+  v9.CheckScriptFailure(lines, 'E1407: Method "Foo": type mismatch, expected func(string, number): list<number> but got func(number, string): list<string>')
 
   # Use an abstract class to invoke an abstract method
   # FIXME: This should fail

--- a/src/testdir/test_vimscript.vim
+++ b/src/testdir/test_vimscript.vim
@@ -3105,7 +3105,7 @@ endfunc
 "	    should be given.
 "
 "	    This test reuses the function MESSAGES() from the previous test.
-"	    This functions checks the messages in g:msgfile.
+"	    This function checks the messages in g:msgfile.
 "-------------------------------------------------------------------------------
 
 func Test_nested_while_error()
@@ -3230,7 +3230,7 @@ endfunc
 "	    error messages should be given.
 "
 "	    This test reuses the function MESSAGES() from the previous test.
-"	    This functions checks the messages in g:msgfile.
+"	    This function checks the messages in g:msgfile.
 "-------------------------------------------------------------------------------
 
 func Test_nested_cont_break_error()
@@ -3336,7 +3336,7 @@ endfunc
 "	    should be given.
 "
 "	    This test reuses the function MESSAGES() from the previous test.
-"	    This functions checks the messages in g:msgfile.
+"	    This function check the messages in g:msgfile.
 "-------------------------------------------------------------------------------
 
 func Test_nested_endtry_error()

--- a/src/testdir/test_virtualedit.vim
+++ b/src/testdir/test_virtualedit.vim
@@ -236,7 +236,7 @@ func Test_ve_completion()
   set virtualedit=
 endfunc
 
-" Using "C" then then <CR> moves the last remaining character to the next
+" Using "C" then <CR> moves the last remaining character to the next
 " line.  (Mary Ellen Foster)
 func Test_ve_del_to_eol()
   new

--- a/src/typval.c
+++ b/src/typval.c
@@ -292,7 +292,7 @@ tv_get_number(typval_T *varp)
 }
 
 /*
- * Like tv_get_numbe() but in Vim9 script do convert a number in a string to a
+ * Like tv_get_number() but in Vim9 script do convert a number in a string to a
  * number without giving an error.
  */
     varnumber_T

--- a/src/version.c
+++ b/src/version.c
@@ -700,6 +700,8 @@ static char *(features[]) =
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1886,
+/**/
     1885,
 /**/
     1884,

--- a/src/vim9.h
+++ b/src/vim9.h
@@ -32,7 +32,7 @@ typedef enum {
 
     ISN_SOURCE,	    // source autoload script, isn_arg.number is the script ID
     ISN_INSTR,	    // instructions compiled from expression
-    ISN_CONSTRUCT,  // construct an object, using contstruct_T
+    ISN_CONSTRUCT,  // construct an object, using construct_T
     ISN_GET_OBJ_MEMBER, // object member, index is isn_arg.number
     ISN_GET_ITF_MEMBER, // interface member, index is isn_arg.classmember
     ISN_STORE_THIS, // store value in "this" object member, index is

--- a/src/vim9type.c
+++ b/src/vim9type.c
@@ -722,7 +722,7 @@ check_typval_type(type_T *expected, typv
 	{
 	    // If a type check is needed that means assigning "any" or
 	    // "unknown" to a more specific type, which fails here.
-	    // Execpt when it looks like a lambda, since they have an
+	    // Except when it looks like a lambda, since they have an
 	    // incomplete type.
 	    type_mismatch_where(expected, actual_type, where);
 	    res = FAIL;