diff --git a/clients/window.c b/clients/window.c
index 1399fa40..b84d3b2c 100644
--- a/clients/window.c
+++ b/clients/window.c
@@ -1032,7 +1032,7 @@ shm_surface_prepare(struct toysurface *base, int dx, int dy,
 	surface->dx = dx;
 	surface->dy = dy;
 
-	/* pick a free buffer, preferrably one that already has storage */
+	/* pick a free buffer, preferably one that already has storage */
 	for (i = 0; i < MAX_LEAVES; i++) {
 		if (surface->leaf[i].busy)
 			continue;
diff --git a/ivi-shell/README b/ivi-shell/README
index 7f412910..412e5989 100644
--- a/ivi-shell/README
+++ b/ivi-shell/README
@@ -16,7 +16,7 @@ IVI-shell contains two main features:
 
   http://projects.genivi.org/wayland-ivi-extension/
 
-- Extension protocal; ivi-application to tie wl_surface and a given ID.
+- Extension protocol; ivi-application to tie wl_surface and a given ID.
   With this ID, shell can identify which wl_surface is drawn by which
   application. In in-vehicle infortainment system, a shell has to update
   a property of a wl_surface. E.g. there may be a use case when vehicle
diff --git a/protocol/fullscreen-shell.xml b/protocol/fullscreen-shell.xml
index 8d7a87fe..e2b994b9 100644
--- a/protocol/fullscreen-shell.xml
+++ b/protocol/fullscreen-shell.xml
@@ -62,7 +62,7 @@
 	its own cursor and set wl_pointer.cursor(NULL).
       </description>
       <entry name="arbitrary_modes" value="1" summary="compositor is capable of almost any output mode"/>
-      <entry name="cursor_plane" value="2" summary="compositor has a seperate cursor plane"/>
+      <entry name="cursor_plane" value="2" summary="compositor has a separate cursor plane"/>
     </enum>
 
     <event name="capability">
diff --git a/protocol/xdg-shell.xml b/protocol/xdg-shell.xml
index 3656e102..68cf4699 100644
--- a/protocol/xdg-shell.xml
+++ b/protocol/xdg-shell.xml
@@ -147,7 +147,7 @@
 	surface is mapped.
 
 	Parent windows should be set on dialogs, toolboxes, or other
-	"auxilliary" surfaces, so that the parent is raised when the dialog
+	"auxiliary" surfaces, so that the parent is raised when the dialog
 	is raised.
       </description>
       <arg name="parent" type="object" interface="xdg_surface" allow-null="true"/>
diff --git a/src/cms-helper.h b/src/cms-helper.h
index 6e5594df..0e08b418 100644
--- a/src/cms-helper.h
+++ b/src/cms-helper.h
@@ -41,7 +41,7 @@
  *             that allows the calibration state to be stored in the ICC profile
  *  Output:    Physical port with a display attached, e.g. LVDS1
  *
- * As a CMF is probably something you don't want or need on an embeded install
+ * As a CMF is probably something you don't want or need on an embedded install
  * these functions will not be called if the icc_profile key is set for a
  * specific [output] section in weston.ini
  *
diff --git a/src/compositor.h b/src/compositor.h
index 76b07781..26df74b9 100644
--- a/src/compositor.h
+++ b/src/compositor.h
@@ -593,7 +593,7 @@ enum weston_capability {
 	/* screencaptures need to be y-flipped */
 	WESTON_CAP_CAPTURE_YFLIP		= 0x0002,
 
-	/* backend/renderer has a seperate cursor plane */
+	/* backend/renderer has a separate cursor plane */
 	WESTON_CAP_CURSOR_PLANE			= 0x0004,
 
 	/* backend supports setting arbitrary resolutions */
diff --git a/src/version.h.in b/src/version.h.in
index 7b2c5e39..b1b4a02e 100644
--- a/src/version.h.in
+++ b/src/version.h.in
@@ -29,9 +29,9 @@
 #define WESTON_VERSION "@WESTON_VERSION@"
 
 /* This macro may not do what you expect.  Weston doesn't guarantee
- * any stable API between 1.X and 1.Y, and thus this macro will return
- * FALSE on any WESTON_VERSION_AT_LEAST(1,X,0) if the actualy version
- * is 1.Y.0 and X !=Y).  In particular, it fail if X < Y, that is,
+ * a stable API between 1.X and 1.Y, and thus this macro will return
+ * FALSE on any WESTON_VERSION_AT_LEAST(1,X,0) if the actual version
+ * is 1.Y.0 and X != Y).  In particular, it fails if X < Y, that is,
  * 1.3.0 is considered to not be "at least" 1.4.0.
  *
  * If you want to test for the version number being 1.3.0 or above or