diff --git a/BUILD.md b/BUILD.md
index ce553eb8bf..2c4cdc76ab 100644
--- a/BUILD.md
+++ b/BUILD.md
@@ -290,7 +290,7 @@ Platform-specific requirements are listed below.
 ### Ubuntu / Debian
 
 ```sh
-sudo apt-get install ninja-build gettext cmake unzip curl
+sudo apt-get install ninja-build gettext cmake unzip curl build-essential
 ```
 
 ### CentOS / RHEL / Fedora
diff --git a/MAINTAIN.md b/MAINTAIN.md
index 3c21b13276..b2434d6259 100644
--- a/MAINTAIN.md
+++ b/MAINTAIN.md
@@ -212,7 +212,7 @@ https://github.com/neovim/neovim-backup
 * Runner versions:
     * For special-purpose jobs where the runner version doesn't really matter,
       prefer `-latest` tags so we don't need to manually bump the versions. An
-      example of a special-purpose workflow is `labeler.yml`.
+      example of a special-purpose workflow is `labeler_pr.yml`.
     * For our testing jobs, which are in `test.yml` and `build.yml`, prefer to
       use the latest stable (i.e. non-beta) version explicitly. Avoid using the
       `-latest` tags here as it makes it difficult to determine from an
diff --git a/runtime/doc/index.txt b/runtime/doc/index.txt
index c1a8aec40e..969346c4c7 100644
--- a/runtime/doc/index.txt
+++ b/runtime/doc/index.txt
@@ -699,7 +699,6 @@ tag		char	      note action in Normal mode	~
 
 tag		char	      note action in Normal mode	~
 ------------------------------------------------------------------------------ ~
-g_CTRL-A	g CTRL-A	   dump a memory profile
 |g_CTRL-G|	g CTRL-G	   show information about current cursor
 				   position
 |g_CTRL-H|	g CTRL-H	   start Select block mode
diff --git a/runtime/doc/lsp.txt b/runtime/doc/lsp.txt
index eb37cb2a6f..cecf7c8d38 100644
--- a/runtime/doc/lsp.txt
+++ b/runtime/doc/lsp.txt
@@ -978,9 +978,9 @@ Lua module: vim.lsp.client                                        *lsp-client*
                                 case-sensitive.
       • {flags}                 (`table`) A table with flags for the client.
                                 The current (experimental) flags are:
-                                • {allow_incremental_sync}? (`boolean`) Allow
-                                  using incremental sync for buffer edits
-                                  (defailt: `true`)
+                                • {allow_incremental_sync}? (`boolean`,
+                                  default: `true`) Allow using incremental
+                                  sync for buffer edits
                                 • {debounce_text_changes} (`integer`, default:
                                   `150`) Debounce `didChange` notifications to
                                   the server by the given number in
@@ -1149,9 +1149,9 @@ Lua module: vim.lsp.client                                        *lsp-client*
                               initialize request. Invalid/empty values will
       • {flags}?              (`table`) A table with flags for the client. The
                               current (experimental) flags are:
-                              • {allow_incremental_sync}? (`boolean`) Allow
-                                using incremental sync for buffer edits
-                                (defailt: `true`)
+                              • {allow_incremental_sync}? (`boolean`, default:
+                                `true`) Allow using incremental sync for
+                                buffer edits
                               • {debounce_text_changes} (`integer`, default:
                                 `150`) Debounce `didChange` notifications to
                                 the server by the given number in
@@ -2096,7 +2096,7 @@ rename({old_fname}, {new_fname}, {opts})               *vim.lsp.util.rename()*
     It deletes existing buffers that conflict with the renamed file name only
     when
     • `opts` requests overwriting; or
-    • the conflicting buffers are not loaded, so that deleting thme does not
+    • the conflicting buffers are not loaded, so that deleting them does not
       result in data loss.
 
     Parameters: ~
diff --git a/runtime/doc/luaref.txt b/runtime/doc/luaref.txt
index e7b62f4c6c..cd0b648560 100644
--- a/runtime/doc/luaref.txt
+++ b/runtime/doc/luaref.txt
@@ -932,7 +932,7 @@ implicit extra parameter `self`. Thus, the statement
 
 is syntactic sugar for
 
-       `t.a.b.c:f = function (self, (`  `params`  `)`  `body`  `end`
+       `t.a.b.c:f = function (`  `self`,  `params`  `)`  `body`  `end`
 
 ==============================================================================
 2.6  Visibility Rules                                    *lua-visibility*
diff --git a/runtime/doc/map.txt b/runtime/doc/map.txt
index 68206dd494..9ec34d5d52 100644
--- a/runtime/doc/map.txt
+++ b/runtime/doc/map.txt
@@ -604,7 +604,7 @@ instead.  Example: >
 	map <Leader>A  oanother line<Esc>
 Works like: >
 	map \A  oanother line<Esc>
-But after:
+But after: >
 	let mapleader = ","
 It works like: >
 	map ,A  oanother line<Esc>
diff --git a/runtime/doc/vim_diff.txt b/runtime/doc/vim_diff.txt
index b0caf9fdaf..a76166abf7 100644
--- a/runtime/doc/vim_diff.txt
+++ b/runtime/doc/vim_diff.txt
@@ -80,6 +80,7 @@ Defaults					            *nvim-defaults*
 - 'tags' defaults to "./tags;,tags"
 - 'termguicolors' is enabled by default if Nvim can detect support from the
   host terminal
+- 'ttimeout' is enabled
 - 'ttimeoutlen' defaults to 50
 - 'ttyfast' is always set
 - 'undodir' defaults to ~/.local/state/nvim/undo// (|xdg|), auto-created
diff --git a/runtime/lua/nvim/health.lua b/runtime/lua/nvim/health.lua
index 0480e4df4e..585c8deaee 100644
--- a/runtime/lua/nvim/health.lua
+++ b/runtime/lua/nvim/health.lua
@@ -17,7 +17,7 @@ local shell_error = function()
   return vim.v.shell_error ~= 0
 end
 
-local suggest_faq = 'https://github.com/neovim/neovim/blob/docs/install/BUILD.md#building'
+local suggest_faq = 'https://github.com/neovim/neovim/blob/master/BUILD.md#building'
 
 local function check_runtime()
   health.start('Runtime')
diff --git a/runtime/lua/vim/lsp/client.lua b/runtime/lua/vim/lsp/client.lua
index ff0db166d5..d48be131f3 100644
--- a/runtime/lua/vim/lsp/client.lua
+++ b/runtime/lua/vim/lsp/client.lua
@@ -15,7 +15,7 @@ local validate = vim.validate
 --- @inlinedoc
 ---
 --- Allow using incremental sync for buffer edits
---- (defailt: `true`)
+--- (default: `true`)
 --- @field allow_incremental_sync? boolean
 ---
 --- Debounce `didChange` notifications to the server by the given number in milliseconds.
diff --git a/runtime/lua/vim/lsp/util.lua b/runtime/lua/vim/lsp/util.lua
index f8e5b6a90d..fc99f54d03 100644
--- a/runtime/lua/vim/lsp/util.lua
+++ b/runtime/lua/vim/lsp/util.lua
@@ -690,7 +690,7 @@ end
 ---
 --- It deletes existing buffers that conflict with the renamed file name only when
 --- * `opts` requests overwriting; or
---- * the conflicting buffers are not loaded, so that deleting thme does not result in data loss.
+--- * the conflicting buffers are not loaded, so that deleting them does not result in data loss.
 ---
 --- @param old_fname string
 --- @param new_fname string
diff --git a/runtime/tutor/en/vim-01-beginner.tutor b/runtime/tutor/en/vim-01-beginner.tutor
index c3decdef11..aed6cd2802 100644
--- a/runtime/tutor/en/vim-01-beginner.tutor
+++ b/runtime/tutor/en/vim-01-beginner.tutor
@@ -360,7 +360,7 @@ Fiix the errors oon thhis line and reeplace them witth undo.
 
  7. To undo previous actions, type:            `u`{normal}  (lowercase u)
     To undo all the changes on a line, type:   `U`{normal}  (capital U)
-    To undo the undo's, type:                  `<C-r>`{normal}
+    To undo the undos, type:                   `<C-r>`{normal}
 
 # Lesson 3.1: THE PUT COMMAND
 
@@ -508,7 +508,7 @@ NOTE: When the search reaches the end of the file it will continue at the
 
 # Lesson 4.3: MATCHING PARENTHESES SEARCH
 
-** Type `%`{normal} to find a matching ),], or }. **
+** Type `%`{normal} to find a matching ), ], or }. **
 
  1. Place the cursor on any (, [, or { in the line below marked ✓.
 
@@ -518,9 +518,9 @@ NOTE: When the search reaches the end of the file it will continue at the
 
  4. Type `%`{normal} to move the cursor to the other matching bracket.
 
- 5. Move the cursor to another (,),[,],{ or } and see what `%`{normal} does.
+ 5. Move the cursor to another (, ), [, ], {, or } and see what `%`{normal} does.
 
-This ( is a test line with ('s, ['s ] and {'s } in it. ))
+This ( is a test line with ('s, ['s, ] and {'s } in it. ))
 
 NOTE: This is very useful in debugging a program with unmatched parentheses!
 
@@ -582,14 +582,14 @@ NOTE: You can also select the lines you want to substitute first using visual-mo
     `<C-o>`{normal} takes you back to older positions, `<C-i>`{normal} to
     newer positions.
 
- 3. Typing `%`{normal} while the cursor is on a (,),[,],{, or } goes to its
+ 3. Typing `%`{normal} while the cursor is on a (, ), [, ], {, or } goes to its
     match.
 
  4. To substitute new for the first old in a line type
 ~~~ cmd
         :s/old/new
 ~~~
-    To substitute new for all 'old's on a line type
+    To substitute new for all olds on a line type
 ~~~ cmd
         :s/old/new/g
 ~~~
@@ -667,7 +667,7 @@ NOTE: If you were to exit Neovim and start it again with `nvim TEST`, the file
 
  4. Type
 
-        `:w TEST`{vim}
+        `w TEST`{vim}
 
     where TEST is a filename that does not exist yet. Verify that you see
 
@@ -762,7 +762,7 @@ Open up a line above this by typing O while the cursor is on this line.
 This li will allow you to pract appendi text to a line.
 This line will allow you to practice appending text to a line.
 
-NOTE: [a](a), [i](i) and [A](A) all go to the same Insert mode, the only
+NOTE: [a](a), [i](i), and [A](A) all go to the same Insert mode, the only
       difference is where the characters are inserted.
 
 # Lesson 6.3: ANOTHER WAY TO REPLACE
diff --git a/src/clint.py b/src/clint.py
index 062901b43a..9bca634171 100755
--- a/src/clint.py
+++ b/src/clint.py
@@ -1689,7 +1689,7 @@ def CheckSpacing(filename, clean_lines, linenum, error):
 
         # Look for < that is not surrounded by spaces.  This is only
         # triggered if both sides are missing spaces, even though
-        # technically should should flag if at least one side is missing a
+        # technically should flag if at least one side is missing a
         # space.  This is done to avoid some false positives with shifts.
         match = Search(r'[^\s<]<([^\s=<].*)', reduced_line)
         if (match and not FindNextMatchingAngleBracket(clean_lines, linenum,
diff --git a/src/nvim/generators/gen_api_dispatch.lua b/src/nvim/generators/gen_api_dispatch.lua
index 04b4363e42..e9bc5e5fe3 100644
--- a/src/nvim/generators/gen_api_dispatch.lua
+++ b/src/nvim/generators/gen_api_dispatch.lua
@@ -259,7 +259,7 @@ put('version')
 fixdict(1 + #version)
 for _, item in ipairs(version) do
   -- NB: all items are mandatory. But any error will be less confusing
-  -- with placholder vim.NIL (than invalid mpack data)
+  -- with placeholder vim.NIL (than invalid mpack data)
   put(item[1], item[2] or vim.NIL)
 end
 put('build', version_build)
diff --git a/src/nvim/marktree.c b/src/nvim/marktree.c
index 0ebebf409e..34d6cd118f 100644
--- a/src/nvim/marktree.c
+++ b/src/nvim/marktree.c
@@ -460,7 +460,7 @@ static void meta_describe_key(uint32_t *meta_inc, MTKey k)
   meta_describe_key_inc(meta_inc, &k);
 }
 
-// if x is internal, asumes x->meta[..] of children are correct
+// if x is internal, assumes x->meta[..] of children are correct
 static void meta_describe_node(uint32_t *meta_node, MTNode *x)
 {
   memset(meta_node, 0, kMTMetaCount * sizeof(meta_node[0]));
@@ -1425,7 +1425,7 @@ bool marktree_itr_get_ext(MarkTree *b, MTPos p, MarkTreeIter *itr, bool last, bo
     }
     if (meta_filter) {
       if (!meta_has(itr->x->meta[itr->i], meta_filter)) {
-        // this takes us to the interal position after the first rejected node
+        // this takes us to the internal position after the first rejected node
         break;
       }
     }
diff --git a/src/nvim/move.c b/src/nvim/move.c
index 551aa1bd4d..0f7f4d8719 100644
--- a/src/nvim/move.c
+++ b/src/nvim/move.c
@@ -239,7 +239,7 @@ static void reset_skipcol(win_T *wp)
   redraw_later(wp, UPD_SOME_VALID);
 }
 
-// Update curwin->w_topline to move the cursor onto the screen.
+// Update wp->w_topline to move the cursor onto the screen.
 void update_topline(win_T *wp)
 {
   bool check_botline = false;
@@ -595,7 +595,7 @@ void changed_line_abv_curs_win(win_T *wp)
                    |VALID_CHEIGHT|VALID_TOPLINE);
 }
 
-// Make sure the value of curwin->w_botline is valid.
+// Make sure the value of wp->w_botline is valid.
 void validate_botline(win_T *wp)
 {
   if (!(wp->w_valid & VALID_BOTLINE)) {