diff --git a/python/core/qgstracer.sip b/python/core/qgstracer.sip
index df31060d93c..12e1cd1c863 100644
--- a/python/core/qgstracer.sip
+++ b/python/core/qgstracer.sip
@@ -48,7 +48,7 @@ class QgsTracer : QObject
     enum PathError
     {
       ErrNone,               //!< No error
-      ErrTooManyFeatures,    //!< Max feature count treshold was reached while reading features
+      ErrTooManyFeatures,    //!< Max feature count threshold was reached while reading features
       ErrPoint1,             //!< Start point cannot be joined to the graph
       ErrPoint2,             //!< End point cannot be joined to the graph
       ErrNoPath,             //!< Points are not connected in the graph
diff --git a/scripts/chkspelling.sh b/scripts/chkspelling.sh
index b007caa2a1c..d14be66ca96 100755
--- a/scripts/chkspelling.sh
+++ b/scripts/chkspelling.sh
@@ -17,6 +17,6 @@
 
 
 RE=$(echo $(cut -d: -f1 scripts/spelling.dat | sed -e 's/^/\\</; s/$/\\>|/;') | sed -e 's/| /|/g; s/|$//;')
-EX="\.(svn-base|tmp|xpm|ts|o)|spelling\.dat|Exception_to_GPL_for_Qt.txt|sqlite3.c|debian/build|ms-windows/osgeo4w|ChangeLog|src/plugins/grass/qtermwidget|src/app/gps/qwtpolar-1.0|debian/tmp|src/plugins/dxf2shp_converter/dxflib"
+EX="\.(svn-base|tmp|xpm|ts|o)|spelling\.dat|Exception_to_GPL_for_Qt.txt|sqlite3.c|debian/build|ms-windows/osgeo4w|ChangeLog|src/plugins/grass/qtermwidget|src/app/gps/qwtpolar-1.0|debian/tmp|src/plugins/dxf2shp_converter/dxflib|python/ext-libs"
 
 egrep --exclude-dir=.git --color=always "$RE" -ir .  | egrep -iv "$EX"
diff --git a/src/app/qgslabelinggui.cpp b/src/app/qgslabelinggui.cpp
index 6f7f06a90d1..fb2a85115b1 100644
--- a/src/app/qgslabelinggui.cpp
+++ b/src/app/qgslabelinggui.cpp
@@ -1115,7 +1115,7 @@ void QgsLabelingGui::populateDataDefinedButtons( QgsPalLayerSettings& s )
                                                                 "<b>6</b>=Below Left|<b>7</b>=Below|<b>8</b>=Below Right]" ) );
   mPointPositionOrderDDBtn->init( mLayer, s.dataDefinedProperty( QgsPalLayerSettings::PredefinedPositionOrder ),
                                   QgsDataDefinedButton::String,
-                                  tr( "Comma seperated list of placements in order of priority<br>" )
+                                  tr( "Comma separated list of placements in order of priority<br>" )
                                   + QLatin1String( "[<b>TL</b>=Top left|<b>TSL</b>=Top, slightly left|<b>T</b>=Top middle|<br>"
                                                    "<b>TSR</b>=Top, slightly right|<b>TR</b>=Top right|<br>"
                                                    "<b>L</b>=Left|<b>R</b>=Right|<br>"
diff --git a/src/core/qgstracer.cpp b/src/core/qgstracer.cpp
index e22709719eb..80ea2b0019f 100644
--- a/src/core/qgstracer.cpp
+++ b/src/core/qgstracer.cpp
@@ -428,7 +428,7 @@ void extractLinework( const QgsGeometry* g, QgsMultiPolyline& mpl )
       break;
 
     default:
-      break;  // unkown type - do nothing
+      break;  // unknown type - do nothing
   }
 }
 
diff --git a/src/core/qgstracer.h b/src/core/qgstracer.h
index 433eb2d4089..620e12f3ba4 100644
--- a/src/core/qgstracer.h
+++ b/src/core/qgstracer.h
@@ -75,7 +75,7 @@ class CORE_EXPORT QgsTracer : public QObject
     enum PathError
     {
       ErrNone,               //!< No error
-      ErrTooManyFeatures,    //!< Max feature count treshold was reached while reading features
+      ErrTooManyFeatures,    //!< Max feature count threshold was reached while reading features
       ErrPoint1,             //!< Start point cannot be joined to the graph
       ErrPoint2,             //!< End point cannot be joined to the graph
       ErrNoPath,             //!< Points are not connected in the graph
diff --git a/src/ui/editorwidgets/qgsexternalresourceconfigdlg.ui b/src/ui/editorwidgets/qgsexternalresourceconfigdlg.ui
index 9d32a20b3a6..53a21ff6918 100644
--- a/src/ui/editorwidgets/qgsexternalresourceconfigdlg.ui
+++ b/src/ui/editorwidgets/qgsexternalresourceconfigdlg.ui
@@ -194,7 +194,7 @@
    <item>
     <widget class="QGroupBox" name="mFilePickerGroupBox">
      <property name="title">
-      <string>Display ressource path</string>
+      <string>Display resource path</string>
      </property>
      <property name="checkable">
       <bool>true</bool>