diff --git a/include/freetype/freetype.h b/include/freetype/freetype.h
index b84c35829..250f405f1 100644
--- a/include/freetype/freetype.h
+++ b/include/freetype/freetype.h
@@ -2855,7 +2855,7 @@ FT_BEGIN_HEADER
    *
    *   If @FT_LOAD_RENDER is also set, the glyph is rendered in the
    *   corresponding mode (i.e., the mode that matches the used algorithm
-   *   best).  An exeption is FT_LOAD_TARGET_MONO since it implies
+   *   best).  An exception is FT_LOAD_TARGET_MONO since it implies
    *   @FT_LOAD_MONOCHROME.
    *
    *   You can use a hinting algorithm that doesn't correspond to the same
diff --git a/include/freetype/ftcid.h b/include/freetype/ftcid.h
index f74cf6e8f..e1bc9fe01 100644
--- a/include/freetype/ftcid.h
+++ b/include/freetype/ftcid.h
@@ -98,7 +98,7 @@ FT_BEGIN_HEADER
    * @description:
    *    Retrieve the type of the input face, CID keyed or not.  In
    *    contrast to the @FT_IS_CID_KEYED macro this function returns
-   *    successfully also for CID-keyed fonts in an SNFT wrapper.
+   *    successfully also for CID-keyed fonts in an SFNT wrapper.
    *
    * @input:
    *    face ::
diff --git a/include/freetype/internal/ftobjs.h b/include/freetype/internal/ftobjs.h
index 2b104c1e1..e3fa32083 100644
--- a/include/freetype/internal/ftobjs.h
+++ b/include/freetype/internal/ftobjs.h
@@ -833,7 +833,7 @@ FT_BEGIN_HEADER
   /*                        filtering callback function.                   */
   /*                                                                       */
   /*    pic_container    :: Contains global structs and tables, instead    */
-  /*                        of defining them globallly.                    */
+  /*                        of defining them globally.                     */
   /*                                                                       */
   /*    refcount         :: A counter initialized to~1 at the time an      */
   /*                        @FT_Library structure is created.              */
diff --git a/src/gxvalid/gxvkern.c b/src/gxvalid/gxvkern.c
index 97ff3bfe9..ee1ab36f7 100644
--- a/src/gxvalid/gxvkern.c
+++ b/src/gxvalid/gxvkern.c
@@ -693,7 +693,7 @@
 
     GXV_NAME_ENTER( "validating coverage" );
 
-    GXV_TRACE(( "interprete coverage 0x%04x by Apple style\n", coverage ));
+    GXV_TRACE(( "interpret coverage 0x%04x by Apple style\n", coverage ));
 
     if ( KERN_IS_NEW( gxvalid ) )
     {
@@ -728,7 +728,7 @@
       }
     }
 
-    GXV_TRACE(( "cannot interprete coverage, broken kern subtable\n" ));
+    GXV_TRACE(( "cannot interpret coverage, broken kern subtable\n" ));
 
   Exit:
     GXV_EXIT;
diff --git a/src/gzip/ftgzip.c b/src/gzip/ftgzip.c
index 9c1f183fd..9cab80eb5 100644
--- a/src/gzip/ftgzip.c
+++ b/src/gzip/ftgzip.c
@@ -59,7 +59,7 @@
  /* original ZLib.                                                   */
 
 #ifndef USE_ZLIB_ZCALLOC
-#define MY_ZCALLOC /* prevent all zcalloc() & zfree() in zutils.c */
+#define MY_ZCALLOC /* prevent all zcalloc() & zfree() in zutil.c */
 #endif
 
 #include "zlib.h"
diff --git a/src/pfr/pfrload.c b/src/pfr/pfrload.c
index 89ed204e2..e509e70b5 100644
--- a/src/pfr/pfrload.c
+++ b/src/pfr/pfrload.c
@@ -615,7 +615,7 @@
 
   Too_Short:
     error = FT_THROW( Invalid_Table );
-    FT_ERROR(( "pfr_exta_item_load_stem_snaps:"
+    FT_ERROR(( "pfr_extra_item_load_stem_snaps:"
                " invalid stem snaps table\n" ));
     goto Exit;
   }
diff --git a/src/sfnt/ttpost.c b/src/sfnt/ttpost.c
index f228f628e..3277f1ec4 100644
--- a/src/sfnt/ttpost.c
+++ b/src/sfnt/ttpost.c
@@ -2,7 +2,7 @@
 /*                                                                         */
 /*  ttpost.c                                                               */
 /*                                                                         */
-/*    Postcript name table processing for TrueType and OpenType fonts      */
+/*    PostScript name table processing for TrueType and OpenType fonts     */
 /*    (body).                                                              */
 /*                                                                         */
 /*  Copyright 1996-2016 by                                                 */
diff --git a/src/sfnt/ttpost.h b/src/sfnt/ttpost.h
index 93762b045..ede45fd84 100644
--- a/src/sfnt/ttpost.h
+++ b/src/sfnt/ttpost.h
@@ -2,7 +2,7 @@
 /*                                                                         */
 /*  ttpost.h                                                               */
 /*                                                                         */
-/*    Postcript name table processing for TrueType and OpenType fonts      */
+/*    PostScript name table processing for TrueType and OpenType fonts     */
 /*    (specification).                                                     */
 /*                                                                         */
 /*  Copyright 1996-2016 by                                                 */