4 files changed, 4 insertions, 4 deletions
diff --git a/src/gui/painting/qgraphicssystem_qws.cpp b/src/gui/painting/qgraphicssystem_qws.cpp
index f5dab4b..03a0d11 100644
--- a/src/gui/painting/qgraphicssystem_qws.cpp
+++ b/src/gui/painting/qgraphicssystem_qws.cpp
@@ -49,7 +49,7 @@ QT_BEGIN_NAMESPACE
 QPixmapData *QWSGraphicsSystem::createPixmapData(QPixmapData::PixelType type) const
 {
     if (screen->pixmapDataFactory())
-        return screen->pixmapDataFactory()->create(type); //### For 4.4 compatability
+        return screen->pixmapDataFactory()->create(type); //### For 4.4 compatibility
     else
         return new QRasterPixmapData(type);
 }
diff --git a/src/gui/painting/qimagescale.cpp b/src/gui/painting/qimagescale.cpp
index 8580775..7383308 100644
--- a/src/gui/painting/qimagescale.cpp
+++ b/src/gui/painting/qimagescale.cpp
@@ -304,7 +304,7 @@ QImageScaleInfo* QImageScale::qimageCalcScaleInfo(const QImage &img,
     return(isi);
 }
 
-/* FIXME: NEED to optimise ScaleAARGBA - currently its "ok" but needs work*/
+/* FIXME: NEED to optimize ScaleAARGBA - currently its "ok" but needs work*/
 
 /* scale by area sampling */
 static void qt_qimageScaleAARGBA(QImageScaleInfo *isi, unsigned int *dest,
diff --git a/src/gui/painting/qpaintengine_raster.cpp b/src/gui/painting/qpaintengine_raster.cpp
index c92d291..8f9d8ba 100644
--- a/src/gui/painting/qpaintengine_raster.cpp
+++ b/src/gui/painting/qpaintengine_raster.cpp
@@ -1102,7 +1102,7 @@ void QRasterPaintEnginePrivate::updateMatrixData(QSpanData *spanData, const QBru
     Q_Q(QRasterPaintEngine);
     bool bilinear = q->state()->flags.bilinear;
 
-    if (b.d->transform.type() > QTransform::TxNone) { // FALCON: optimise
+    if (b.d->transform.type() > QTransform::TxNone) { // FALCON: optimize
         spanData->setupMatrix(b.transform() * m, bilinear);
     } else {
         if (m.type() <= QTransform::TxTranslate) {
diff --git a/src/gui/painting/qregion.h b/src/gui/painting/qregion.h
index bc4da28..acb20c1 100644
--- a/src/gui/painting/qregion.h
+++ b/src/gui/painting/qregion.h
@@ -201,7 +201,7 @@ private:
         Region rgn;
         void *xrectangles;
 #elif defined(Q_WS_MAC) && !defined(QT_MAC_USE_COCOA)
-        mutable RgnHandle unused; // Here for binary compatability reasons. ### Qt 5 remove.
+        mutable RgnHandle unused; // Here for binary compatibility reasons. ### Qt 5 remove.
 #endif
 #if defined(Q_WS_QWS) || defined(Q_WS_X11) || defined(Q_WS_MAC) || defined(Q_WS_WIN) || defined(Q_OS_SYMBIAN)
         QRegionPrivate *qt_rgn;