diff --git a/src/corelib/kernel/qmetatype.cpp b/src/corelib/kernel/qmetatype.cpp
index c914c65126c..fa3398b6bfb 100644
--- a/src/corelib/kernel/qmetatype.cpp
+++ b/src/corelib/kernel/qmetatype.cpp
@@ -79,40 +79,40 @@ QT_BEGIN_NAMESPACE
 
 namespace {
 template<typename T>
-struct TypeDefiniton {
+struct TypeDefinition {
     static const bool IsAvailable = true;
 };
 
 struct DefinedTypesFilter {
     template<typename T>
     struct Acceptor {
-        static const bool IsAccepted = TypeDefiniton<T>::IsAvailable && QTypeModuleInfo<T>::IsCore;
+        static const bool IsAccepted = TypeDefinition<T>::IsAvailable && QTypeModuleInfo<T>::IsCore;
     };
 };
 
 // Ignore these types, as incomplete
 #ifdef QT_NO_GEOM_VARIANT
-template<> struct TypeDefiniton<QRect> { static const bool IsAvailable = false; };
-template<> struct TypeDefiniton<QRectF> { static const bool IsAvailable = false; };
-template<> struct TypeDefiniton<QSize> { static const bool IsAvailable = false; };
-template<> struct TypeDefiniton<QSizeF> { static const bool IsAvailable = false; };
-template<> struct TypeDefiniton<QLine> { static const bool IsAvailable = false; };
-template<> struct TypeDefiniton<QLineF> { static const bool IsAvailable = false; };
-template<> struct TypeDefiniton<QPoint> { static const bool IsAvailable = false; };
-template<> struct TypeDefiniton<QPointF> { static const bool IsAvailable = false; };
+template<> struct TypeDefinition<QRect> { static const bool IsAvailable = false; };
+template<> struct TypeDefinition<QRectF> { static const bool IsAvailable = false; };
+template<> struct TypeDefinition<QSize> { static const bool IsAvailable = false; };
+template<> struct TypeDefinition<QSizeF> { static const bool IsAvailable = false; };
+template<> struct TypeDefinition<QLine> { static const bool IsAvailable = false; };
+template<> struct TypeDefinition<QLineF> { static const bool IsAvailable = false; };
+template<> struct TypeDefinition<QPoint> { static const bool IsAvailable = false; };
+template<> struct TypeDefinition<QPointF> { static const bool IsAvailable = false; };
 #endif
 #ifdef QT_BOOTSTRAPPED
-template<> struct TypeDefiniton<QVariantMap> { static const bool IsAvailable = false; };
-template<> struct TypeDefiniton<QVariantHash> { static const bool IsAvailable = false; };
-template<> struct TypeDefiniton<QVariantList> { static const bool IsAvailable = false; };
-template<> struct TypeDefiniton<QVariant> { static const bool IsAvailable = false; };
-template<> struct TypeDefiniton<QBitArray> { static const bool IsAvailable = false; };
-template<> struct TypeDefiniton<QUrl> { static const bool IsAvailable = false; };
-template<> struct TypeDefiniton<QEasingCurve> { static const bool IsAvailable = false; };
-template<> struct TypeDefiniton<QModelIndex> { static const bool IsAvailable = false; };
+template<> struct TypeDefinition<QVariantMap> { static const bool IsAvailable = false; };
+template<> struct TypeDefinition<QVariantHash> { static const bool IsAvailable = false; };
+template<> struct TypeDefinition<QVariantList> { static const bool IsAvailable = false; };
+template<> struct TypeDefinition<QVariant> { static const bool IsAvailable = false; };
+template<> struct TypeDefinition<QBitArray> { static const bool IsAvailable = false; };
+template<> struct TypeDefinition<QUrl> { static const bool IsAvailable = false; };
+template<> struct TypeDefinition<QEasingCurve> { static const bool IsAvailable = false; };
+template<> struct TypeDefinition<QModelIndex> { static const bool IsAvailable = false; };
 #endif
 #ifdef QT_NO_REGEXP
-template<> struct TypeDefiniton<QRegExp> { static const bool IsAvailable = false; };
+template<> struct TypeDefinition<QRegExp> { static const bool IsAvailable = false; };
 #endif
 } // namespace
 
diff --git a/src/corelib/kernel/qvariant.cpp b/src/corelib/kernel/qvariant.cpp
index c8db27515cb..cfaf22c1464 100644
--- a/src/corelib/kernel/qvariant.cpp
+++ b/src/corelib/kernel/qvariant.cpp
@@ -98,33 +98,33 @@ public:
 
 namespace {
 template<typename T>
-struct TypeDefiniton {
+struct TypeDefinition {
     static const bool IsAvailable = true;
 };
 
 // Ignore these types, as incomplete
 #ifdef QT_BOOTSTRAPPED
-template<> struct TypeDefiniton<QEasingCurve> { static const bool IsAvailable = false; };
-template<> struct TypeDefiniton<QModelIndex> { static const bool IsAvailable = false; };
+template<> struct TypeDefinition<QEasingCurve> { static const bool IsAvailable = false; };
+template<> struct TypeDefinition<QModelIndex> { static const bool IsAvailable = false; };
 #endif
 #ifdef QT_NO_GEOM_VARIANT
-template<> struct TypeDefiniton<QRect> { static const bool IsAvailable = false; };
-template<> struct TypeDefiniton<QRectF> { static const bool IsAvailable = false; };
-template<> struct TypeDefiniton<QSize> { static const bool IsAvailable = false; };
-template<> struct TypeDefiniton<QSizeF> { static const bool IsAvailable = false; };
-template<> struct TypeDefiniton<QLine> { static const bool IsAvailable = false; };
-template<> struct TypeDefiniton<QLineF> { static const bool IsAvailable = false; };
-template<> struct TypeDefiniton<QPoint> { static const bool IsAvailable = false; };
-template<> struct TypeDefiniton<QPointF> { static const bool IsAvailable = false; };
+template<> struct TypeDefinition<QRect> { static const bool IsAvailable = false; };
+template<> struct TypeDefinition<QRectF> { static const bool IsAvailable = false; };
+template<> struct TypeDefinition<QSize> { static const bool IsAvailable = false; };
+template<> struct TypeDefinition<QSizeF> { static const bool IsAvailable = false; };
+template<> struct TypeDefinition<QLine> { static const bool IsAvailable = false; };
+template<> struct TypeDefinition<QLineF> { static const bool IsAvailable = false; };
+template<> struct TypeDefinition<QPoint> { static const bool IsAvailable = false; };
+template<> struct TypeDefinition<QPointF> { static const bool IsAvailable = false; };
 #endif
 
 struct CoreTypesFilter {
     template<typename T>
     struct Acceptor {
-        static const bool IsAccepted = QTypeModuleInfo<T>::IsCore && TypeDefiniton<T>::IsAvailable;
+        static const bool IsAccepted = QTypeModuleInfo<T>::IsCore && TypeDefinition<T>::IsAvailable;
     };
 };
-} // annonymous used to hide TypeDefiniton
+} // annonymous used to hide TypeDefinition
 
 namespace { // annonymous used to hide QVariant handlers
 
diff --git a/src/gui/kernel/qguivariant.cpp b/src/gui/kernel/qguivariant.cpp
index 752c1dc082d..8378650dcb4 100644
--- a/src/gui/kernel/qguivariant.cpp
+++ b/src/gui/kernel/qguivariant.cpp
@@ -99,46 +99,46 @@ Q_CORE_EXPORT const QVariant::Handler *qcoreVariantHandler();
 
 namespace {
 template<typename T>
-struct TypeDefiniton {
+struct TypeDefinition {
     static const bool IsAvailable = true;
 };
 // Ignore these types, as incomplete
 #ifdef QT_NO_GEOM_VARIANT
-template<> struct TypeDefiniton<QRect> { static const bool IsAvailable = false; };
-template<> struct TypeDefiniton<QRectF> { static const bool IsAvailable = false; };
-template<> struct TypeDefiniton<QSize> { static const bool IsAvailable = false; };
-template<> struct TypeDefiniton<QSizeF> { static const bool IsAvailable = false; };
-template<> struct TypeDefiniton<QLine> { static const bool IsAvailable = false; };
-template<> struct TypeDefiniton<QLineF> { static const bool IsAvailable = false; };
-template<> struct TypeDefiniton<QPoint> { static const bool IsAvailable = false; };
-template<> struct TypeDefiniton<QPointF> { static const bool IsAvailable = false; };
+template<> struct TypeDefinition<QRect> { static const bool IsAvailable = false; };
+template<> struct TypeDefinition<QRectF> { static const bool IsAvailable = false; };
+template<> struct TypeDefinition<QSize> { static const bool IsAvailable = false; };
+template<> struct TypeDefinition<QSizeF> { static const bool IsAvailable = false; };
+template<> struct TypeDefinition<QLine> { static const bool IsAvailable = false; };
+template<> struct TypeDefinition<QLineF> { static const bool IsAvailable = false; };
+template<> struct TypeDefinition<QPoint> { static const bool IsAvailable = false; };
+template<> struct TypeDefinition<QPointF> { static const bool IsAvailable = false; };
 #endif
 #ifdef QT_NO_SHORTCUT
-template<> struct TypeDefiniton<QKeySequence> { static const bool IsAvailable = false; };
+template<> struct TypeDefinition<QKeySequence> { static const bool IsAvailable = false; };
 #endif
 #ifdef QT_NO_CURSOR
-template<> struct TypeDefiniton<QCursor> { static const bool IsAvailable = false; };
+template<> struct TypeDefinition<QCursor> { static const bool IsAvailable = false; };
 #endif
 #ifdef QT_NO_MATRIX4X4
-template<> struct TypeDefiniton<QMatrix4x4> { static const bool IsAvailable = false; };
+template<> struct TypeDefinition<QMatrix4x4> { static const bool IsAvailable = false; };
 #endif
 #ifdef QT_NO_VECTOR2D
-template<> struct TypeDefiniton<QVector2D> { static const bool IsAvailable = false; };
+template<> struct TypeDefinition<QVector2D> { static const bool IsAvailable = false; };
 #endif
 #ifdef QT_NO_VECTOR3D
-template<> struct TypeDefiniton<QVector3D> { static const bool IsAvailable = false; };
+template<> struct TypeDefinition<QVector3D> { static const bool IsAvailable = false; };
 #endif
 #ifdef QT_NO_VECTOR4D
-template<> struct TypeDefiniton<QVector4D> { static const bool IsAvailable = false; };
+template<> struct TypeDefinition<QVector4D> { static const bool IsAvailable = false; };
 #endif
 #ifdef QT_NO_QUATERNION
-template<> struct TypeDefiniton<QQuaternion> { static const bool IsAvailable = false; };
+template<> struct TypeDefinition<QQuaternion> { static const bool IsAvailable = false; };
 #endif
 
 struct GuiTypesFilter {
     template<typename T>
     struct Acceptor {
-        static const bool IsAccepted = QTypeModuleInfo<T>::IsGui && TypeDefiniton<T>::IsAvailable;
+        static const bool IsAccepted = QTypeModuleInfo<T>::IsGui && TypeDefinition<T>::IsAvailable;
     };
 };
 } // namespace used to hide TypeDefinition