diff --git a/CONFIG.md b/CONFIG.md
index 0faa359e6..f0fc065c7 100644
--- a/CONFIG.md
+++ b/CONFIG.md
@@ -144,7 +144,7 @@ the macro `HB_CONFIG_OVERRIDE_H` to the string containing to that header file's
 name.  HarfBuzz will then include that file at the appropriate place during
 configuration.
 
-Up until HarfBuzz 3.1.2 the the configuration override header file's name was
+Up until HarfBuzz 3.1.2, the configuration override header file's name was
 fixed and called `config-override.h`, and was activated by defining the macro
 `HAVE_CONFIG_OVERRIDE_H`.  That still works.
 
diff --git a/src/OT/Layout/GPOS/PairPosFormat2.hh b/src/OT/Layout/GPOS/PairPosFormat2.hh
index 1bde9e755..4adb1ef60 100644
--- a/src/OT/Layout/GPOS/PairPosFormat2.hh
+++ b/src/OT/Layout/GPOS/PairPosFormat2.hh
@@ -163,7 +163,7 @@ struct PairPosFormat2_4
 
 
     /* Isolate simple kerning and apply it half to each side.
-     * Results in better cursor positinoing / underline drawing.
+     * Results in better cursor positioning / underline drawing.
      *
      * Disabled, because causes issues... :-(
      * https://github.com/harfbuzz/harfbuzz/issues/3408
diff --git a/src/hb-bimap.hh b/src/hb-bimap.hh
index 64dbf2e86..f54147254 100644
--- a/src/hb-bimap.hh
+++ b/src/hb-bimap.hh
@@ -93,7 +93,7 @@ struct hb_bimap_t
   auto iter () const HB_AUTO_RETURN (+ forw_map.iter())
 };
 
-/* Inremental bimap: only lhs is given, rhs is incrementally assigned */
+/* Incremental bimap: only lhs is given, rhs is incrementally assigned */
 struct hb_inc_bimap_t
 {
   bool in_error () const { return forw_map.in_error () || back_map.in_error (); }
diff --git a/src/hb-bit-set.hh b/src/hb-bit-set.hh
index 9e60cb934..1dbcce5cb 100644
--- a/src/hb-bit-set.hh
+++ b/src/hb-bit-set.hh
@@ -913,7 +913,7 @@ struct hb_bit_set_t
 
     /* The extra page_map length is necessary; can't just rely on vector here,
      * since the next check would be tricked because a null page also has
-     * major==0, which we can't distinguish from an actualy major==0 page... */
+     * major==0, which we can't distinguish from an actually major==0 page... */
     unsigned i = last_page_lookup;
     if (likely (i < page_map.length))
     {
@@ -947,7 +947,7 @@ struct hb_bit_set_t
 
     /* The extra page_map length is necessary; can't just rely on vector here,
      * since the next check would be tricked because a null page also has
-     * major==0, which we can't distinguish from an actualy major==0 page... */
+     * major==0, which we can't distinguish from an actually major==0 page... */
     unsigned i = last_page_lookup;
     if (likely (i < page_map.length))
     {
diff --git a/src/hb-buffer.cc b/src/hb-buffer.cc
index 749ef9bd4..934c6c212 100644
--- a/src/hb-buffer.cc
+++ b/src/hb-buffer.cc
@@ -1327,7 +1327,7 @@ hb_buffer_get_invisible_glyph (const hb_buffer_t *buffer)
  * Sets the #hb_codepoint_t that replaces characters not found in
  * the font during shaping.
  *
- * The not-found glyph defaults to zero, sometimes knows as the
+ * The not-found glyph defaults to zero, sometimes known as the
  * ".notdef" glyph.  This API allows for differentiating the two.
  *
  * Since: 3.1.0
@@ -2076,7 +2076,7 @@ hb_buffer_t::sort (unsigned int start, unsigned int end, int(*compar)(const hb_g
  * hb_buffer_diff:
  * @buffer: a buffer.
  * @reference: other buffer to compare to.
- * @dottedcircle_glyph: glyph id of U+25CC DOTTED CIRCLE, or (hb_codepont_t) -1.
+ * @dottedcircle_glyph: glyph id of U+25CC DOTTED CIRCLE, or (hb_codepoint_t) -1.
  * @position_fuzz: allowed absolute difference in position values.
  *
  * If dottedcircle_glyph is (hb_codepoint_t) -1 then #HB_BUFFER_DIFF_FLAG_DOTTED_CIRCLE_PRESENT
diff --git a/src/hb-buffer.h b/src/hb-buffer.h
index bff78543c..3573127ff 100644
--- a/src/hb-buffer.h
+++ b/src/hb-buffer.h
@@ -99,7 +99,7 @@ typedef struct hb_glyph_info_t {
  * 				   layout, by avoiding re-shaping of each line
  * 				   after line-breaking, by limiting the
  * 				   reshaping to a small piece around the
- * 				   breaking positin only, even if the breaking
+ * 				   breaking position only, even if the breaking
  * 				   position carries the
  * 				   #HB_GLYPH_FLAG_UNSAFE_TO_BREAK or when
  * 				   hyphenation or other text transformation
diff --git a/src/hb-font.cc b/src/hb-font.cc
index f062bfaf7..00f1f6d38 100644
--- a/src/hb-font.cc
+++ b/src/hb-font.cc
@@ -1066,7 +1066,7 @@ hb_font_get_nominal_glyph (hb_font_t      *font,
  * @glyph_stride: The stride between successive glyph IDs
  *
  * Fetches the nominal glyph IDs for a sequence of Unicode code points. Glyph
- * IDs must be returned in a #hb_codepoint_t output parameter. Stopes at the
+ * IDs must be returned in a #hb_codepoint_t output parameter. Stops at the
  * first unsupported glyph ID.
  *
  * Return value: the number of code points processed
diff --git a/src/hb-map.cc b/src/hb-map.cc
index 5d67cd9a1..0dc9246f1 100644
--- a/src/hb-map.cc
+++ b/src/hb-map.cc
@@ -365,7 +365,7 @@ hb_map_update (hb_map_t *map,
  * @key: (out): Key retrieved
  * @value: (out): Value retrieved
  *
- * Fetches the next key/value paire in @map.
+ * Fetches the next key/value pair in @map.
  *
  * Set @idx to -1 to get started.
  *
diff --git a/src/hb-ot-shape.cc b/src/hb-ot-shape.cc
index 9c1c2a950..90f596ae7 100644
--- a/src/hb-ot-shape.cc
+++ b/src/hb-ot-shape.cc
@@ -1054,7 +1054,7 @@ hb_ot_position_plan (const hb_ot_shape_context_t *c)
    * direction is backward we don't shift and it will end up
    * hanging over the next glyph after the final reordering.
    *
-   * Note: If fallback positinoing happens, we don't care about
+   * Note: If fallback positioning happens, we don't care about
    * this as it will be overridden.
    */
   bool adjust_offsets_when_zeroing = c->plan->adjust_mark_positioning_when_zeroing &&
diff --git a/src/hb-sanitize.hh b/src/hb-sanitize.hh
index efb5adde5..f2b7da167 100644
--- a/src/hb-sanitize.hh
+++ b/src/hb-sanitize.hh
@@ -453,7 +453,7 @@ struct hb_sanitize_context_t :
 	edit_count = 0;
 	sane = t->sanitize (this);
 	if (edit_count) {
-	  DEBUG_MSG_FUNC (SANITIZE, start, "requested %u edits in second round; FAILLING", edit_count);
+	  DEBUG_MSG_FUNC (SANITIZE, start, "requested %u edits in second round; FAILING", edit_count);
 	  sane = false;
 	}
       }
diff --git a/src/hb-set.cc b/src/hb-set.cc
index 97caddb22..a9386c5c9 100644
--- a/src/hb-set.cc
+++ b/src/hb-set.cc
@@ -200,7 +200,7 @@ hb_set_copy (const hb_set_t *set)
 void
 hb_set_clear (hb_set_t *set)
 {
-  /* Immutible-safe. */
+  /* Immutable-safe. */
   set->clear ();
 }
 
@@ -251,7 +251,7 @@ void
 hb_set_add (hb_set_t       *set,
 	    hb_codepoint_t  codepoint)
 {
-  /* Immutible-safe. */
+  /* Immutable-safe. */
   set->add (codepoint);
 }
 
@@ -272,7 +272,7 @@ hb_set_add_sorted_array (hb_set_t             *set,
 		         const hb_codepoint_t *sorted_codepoints,
 		         unsigned int          num_codepoints)
 {
-  /* Immutible-safe. */
+  /* Immutable-safe. */
   set->add_sorted_array (sorted_codepoints,
 		         num_codepoints,
 		         sizeof(hb_codepoint_t));
@@ -294,7 +294,7 @@ hb_set_add_range (hb_set_t       *set,
 		  hb_codepoint_t  first,
 		  hb_codepoint_t  last)
 {
-  /* Immutible-safe. */
+  /* Immutable-safe. */
   set->add_range (first, last);
 }
 
@@ -311,7 +311,7 @@ void
 hb_set_del (hb_set_t       *set,
 	    hb_codepoint_t  codepoint)
 {
-  /* Immutible-safe. */
+  /* Immutable-safe. */
   set->del (codepoint);
 }
 
@@ -334,7 +334,7 @@ hb_set_del_range (hb_set_t       *set,
 		  hb_codepoint_t  first,
 		  hb_codepoint_t  last)
 {
-  /* Immutible-safe. */
+  /* Immutable-safe. */
   set->del_range (first, last);
 }
 
@@ -405,7 +405,7 @@ void
 hb_set_set (hb_set_t       *set,
 	    const hb_set_t *other)
 {
-  /* Immutible-safe. */
+  /* Immutable-safe. */
   set->set (*other);
 }
 
@@ -422,7 +422,7 @@ void
 hb_set_union (hb_set_t       *set,
 	      const hb_set_t *other)
 {
-  /* Immutible-safe. */
+  /* Immutable-safe. */
   set->union_ (*other);
 }
 
@@ -439,7 +439,7 @@ void
 hb_set_intersect (hb_set_t       *set,
 		  const hb_set_t *other)
 {
-  /* Immutible-safe. */
+  /* Immutable-safe. */
   set->intersect (*other);
 }
 
@@ -456,7 +456,7 @@ void
 hb_set_subtract (hb_set_t       *set,
 		 const hb_set_t *other)
 {
-  /* Immutible-safe. */
+  /* Immutable-safe. */
   set->subtract (*other);
 }
 
@@ -474,7 +474,7 @@ void
 hb_set_symmetric_difference (hb_set_t       *set,
 			     const hb_set_t *other)
 {
-  /* Immutible-safe. */
+  /* Immutable-safe. */
   set->symmetric_difference (*other);
 }
 
@@ -489,7 +489,7 @@ hb_set_symmetric_difference (hb_set_t       *set,
 void
 hb_set_invert (hb_set_t *set)
 {
-  /* Immutible-safe. */
+  /* Immutable-safe. */
   set->invert ();
 }
 
diff --git a/src/hb-vector.hh b/src/hb-vector.hh
index 23a96d708..f41ea6f09 100644
--- a/src/hb-vector.hh
+++ b/src/hb-vector.hh
@@ -102,7 +102,7 @@ struct hb_vector_t
 
   void fini ()
   {
-    /* We allow a hack to make the vector point to a foriegn array
+    /* We allow a hack to make the vector point to a foreign array
      * by the user. In that case length/arrayZ are non-zero but
      * allocated is zero. Don't free anything. */
     if (allocated)
diff --git a/src/hb-wasm-shape.cc b/src/hb-wasm-shape.cc
index 79442e99e..a70b76664 100644
--- a/src/hb-wasm-shape.cc
+++ b/src/hb-wasm-shape.cc
@@ -48,7 +48,7 @@
  *
  *   - Build your font's wasm code importing the shared modules with the desired
  *     name. This can be done eg.: __attribute__((import_module("graphite2")))
- *     before each symbol in the the shared-module's headers.
+ *     before each symbol in the shared-module's headers.
  *
  *   - Try shaping your font and hope for the best...
  *