diff --git a/src/qtgui/guiutils.cpp b/src/qtgui/guiutils.cpp
index 76b9ccd2..41eb787b 100644
--- a/src/qtgui/guiutils.cpp
+++ b/src/qtgui/guiutils.cpp
@@ -202,6 +202,10 @@ void rwSettings(bool writing)
     SETTING_RW(prefs.autoSuffsEnable, 
 	       "/Recoll/prefs/query/autoSuffsEnable", Bool, false);
 
+    SETTING_RW(prefs.synFileEnable, 
+	       "/Recoll/prefs/query/synFileEnable", Bool, false);
+    SETTING_RW(prefs.synFile, "/Recoll/prefs/query/synfile", String, "");
+    
     SETTING_RW(prefs.termMatchType, "/Recoll/prefs/query/termMatchType", 
 	       Int, 0);
     // This is not really the current program version, just a value to
diff --git a/src/qtgui/guiutils.h b/src/qtgui/guiutils.h
index a2ebd3d8..923d482f 100644
--- a/src/qtgui/guiutils.h
+++ b/src/qtgui/guiutils.h
@@ -115,6 +115,9 @@ class PrefsPack {
     // language entry. 
     QString autoSuffs;
     bool    autoSuffsEnable;
+    // Synonyms file
+    QString synFile;
+    bool    synFileEnable;
 
     QStringList restableFields;
     vector<int> restableColWidths;
diff --git a/src/qtgui/rclmain.ui b/src/qtgui/rclmain.ui
index 6d89c117..3b4142d3 100644
--- a/src/qtgui/rclmain.ui
+++ b/src/qtgui/rclmain.ui
@@ -109,6 +109,8 @@
     <addaction name="queryPrefsAction"/>
     <addaction name="extIdxAction"/>
     <addaction name="separator"/>
+    <addaction name="enbSynAction"/>
+    <addaction name="separator"/>
    </widget>
    <widget class="QMenu" name="helpMenu">
     <property name="title">
@@ -346,7 +348,7 @@
   </action>
   <action name="indexScheduleAction">
    <property name="text">
-    <string>&amp;Indexing schedule</string>
+    <string>Indexing &amp;schedule</string>
    </property>
    <property name="name" stdset="0">
     <cstring>indexScheduleAction</cstring>
@@ -371,6 +373,20 @@
     <cstring>extIdxAction</cstring>
    </property>
   </action>
+  <action name="enbSynAction">
+   <property name="text">
+    <string>Enable synonyms</string>
+   </property>
+   <property name="iconText">
+    <string>Enable synonyms</string>
+   </property>
+   <property name="name" stdset="0">
+    <cstring>enbSynAction</cstring>
+   </property>
+   <property name="checkable">
+    <bool>true</bool>
+   </property>
+  </action>
   <action name="toggleFullScreenAction">
    <property name="text">
     <string>&amp;Full Screen</string>
diff --git a/src/qtgui/rclmain_w.cpp b/src/qtgui/rclmain_w.cpp
index 992e9d0f..d2237a33 100644
--- a/src/qtgui/rclmain_w.cpp
+++ b/src/qtgui/rclmain_w.cpp
@@ -153,6 +153,9 @@ void RclMain::init()
     // Set the focus to the search terms entry:
     sSearch->queryText->setFocus();
 
+    enbSynAction->setDisabled(prefs.synFile.isEmpty());
+    enbSynAction->setChecked(prefs.synFileEnable);
+    
     // Stemming language menu
     g_stringNoStem = tr("(no stemming)");
     g_stringAllStem = tr("(all languages)");
@@ -341,6 +344,8 @@ void RclMain::init()
 	    this, SLOT(showUIPrefs()));
     connect(extIdxAction, SIGNAL(triggered()), 
 	    this, SLOT(showExtIdxDialog()));
+    connect(enbSynAction, SIGNAL(toggled(bool)),
+            this, SLOT(setSynEnabled(bool)));
 
     connect(toggleFullScreenAction, SIGNAL(triggered()), 
             this, SLOT(toggleFullScreen()));
@@ -459,6 +464,13 @@ void RclMain::init()
     periodictimer->start(1000);
 }
 
+void RclMain::setSynEnabled(bool on)
+{
+    prefs.synFileEnable = on;
+    if (uiprefs)
+        uiprefs->synFileCB->setChecked(prefs.synFileEnable);
+}
+
 void RclMain::resultCount(int n)
 {
     actionSortByDateAsc->setEnabled(n>0);
@@ -679,6 +691,17 @@ void RclMain::startSearch(STD_SHARED_PTR<Rcl::SearchData> sdata, bool issimple)
 	return;
     }
 
+    if (prefs.synFileEnable && !prefs.synFile.isEmpty()) {
+        string sf = (const char *)prefs.synFile.toLocal8Bit();
+        if (!rcldb->setSynGroupsFile(sf)) {
+            QMessageBox::warning(0, "Recoll",
+                                 tr("Can't set synonyms file (parse error?)"));
+            return;
+        }
+    } else {
+        rcldb->setSynGroupsFile("");
+    }
+
     Rcl::Query *query = new Rcl::Query(rcldb);
     query->setCollapseDuplicates(prefs.collapseDuplicates);
 
@@ -1014,6 +1037,8 @@ void RclMain::setUIPrefs()
     LOGDEB(("Recollmain::setUIPrefs\n"));
     reslist->setFont();
     sSearch->setPrefs();
+    enbSynAction->setDisabled(prefs.synFile.isEmpty());
+    enbSynAction->setChecked(prefs.synFileEnable);
 }
 
 void RclMain::enableNextPage(bool yesno)
diff --git a/src/qtgui/rclmain_w.h b/src/qtgui/rclmain_w.h
index 3e989e73..fc080b30 100644
--- a/src/qtgui/rclmain_w.h
+++ b/src/qtgui/rclmain_w.h
@@ -130,6 +130,7 @@ public slots:
     virtual void startManual(const string&);
     virtual void showDocHistory();
     virtual void showExtIdxDialog();
+    virtual void setSynEnabled(bool);
     virtual void showUIPrefs();
     virtual void showIndexConfig();
     virtual void execIndexConfig();
diff --git a/src/qtgui/uiprefs.ui b/src/qtgui/uiprefs.ui
index b6ee9dfd..9ca254ce 100644
--- a/src/qtgui/uiprefs.ui
+++ b/src/qtgui/uiprefs.ui
@@ -778,6 +778,56 @@ May be slow for big documents.</string>
              </item>
             </layout>
            </item>
+           <item>
+            <widget class="Line" name="line3">
+             <property name="frameShape">
+              <enum>QFrame::HLine</enum>
+             </property>
+             <property name="frameShadow">
+              <enum>QFrame::Sunken</enum>
+             </property>
+            </widget>
+           </item>
+           <item>
+            <layout class="QHBoxLayout">
+             <item>
+              <widget class="QLabel" name="textLabelSG">
+               <property name="sizePolicy">
+                <sizepolicy hsizetype="Preferred" vsizetype="Preferred">
+                 <horstretch>1</horstretch>
+                 <verstretch>0</verstretch>
+                </sizepolicy>
+               </property>
+               <property name="text">
+                <string>Synonyms file</string>
+               </property>
+               <property name="wordWrap">
+                <bool>false</bool>
+               </property>
+              </widget>
+             </item>
+             <item>
+              <widget class="QCheckBox" name="synFileCB">
+               <property name="text">
+                <string>Enable</string>
+               </property>
+              </widget>
+             </item>
+             <item>
+              <widget class="QPushButton" name="synFilePB">
+               <property name="minimumSize">
+                <size>
+                 <width>30</width>
+                 <height>0</height>
+                </size>
+               </property>
+               <property name="text">
+                <string>Choose</string>
+               </property>
+              </widget>
+             </item>
+            </layout>
+           </item>
            <item>
             <spacer name="spacer2">
              <property name="orientation">
diff --git a/src/qtgui/uiprefs_w.cpp b/src/qtgui/uiprefs_w.cpp
index 2027ae74..0c529250 100644
--- a/src/qtgui/uiprefs_w.cpp
+++ b/src/qtgui/uiprefs_w.cpp
@@ -45,7 +45,6 @@
 
 #include "recoll.h"
 #include "guiutils.h"
-#include "rcldb.h"
 #include "rclconfig.h"
 #include "pathut.h"
 #include "uiprefs_w.h"
@@ -73,6 +72,7 @@ void UIPrefsDialog::init()
     connect(stylesheetPB, SIGNAL(clicked()),this, SLOT(showStylesheetDialog()));
     connect(resetSSPB, SIGNAL(clicked()), this, SLOT(resetStylesheet()));
     connect(snipCssPB, SIGNAL(clicked()),this, SLOT(showSnipCssDialog()));
+    connect(synFilePB, SIGNAL(clicked()),this, SLOT(showSynFileDialog()));
     connect(resetSnipCssPB, SIGNAL(clicked()), this, SLOT(resetSnipCss()));
 
     connect(idxLV, SIGNAL(itemSelectionChanged()),
@@ -214,6 +214,15 @@ void UIPrefsDialog::setFromPrefs()
     autoSuffsCB->setChecked(prefs.autoSuffsEnable);
     autoSuffsLE->setText(prefs.autoSuffs);
 
+    synFileCB->setChecked(prefs.synFileEnable);
+    synFile = prefs.synFile;
+    if (synFile.isEmpty()) {
+	synFilePB->setText(tr("Choose"));
+    } else {
+	string nm = path_getsimple((const char *)synFile.toLocal8Bit());
+	synFilePB->setText(QString::fromLocal8Bit(nm.c_str()));
+    }
+
     // Initialize the extra indexes listboxes
     idxLV->clear();
     for (list<string>::iterator it = prefs.allExtraDbs.begin(); 
@@ -326,10 +335,12 @@ void UIPrefsDialog::accept()
     prefs.syntAbsLen = syntlenSB->value();
     prefs.syntAbsCtx = syntctxSB->value();
 
-    
     prefs.autoSuffsEnable = autoSuffsCB->isChecked();
     prefs.autoSuffs = autoSuffsLE->text();
 
+    prefs.synFileEnable = synFileCB->isChecked();
+    prefs.synFile = synFile;
+    
     prefs.allExtraDbs.clear();
     prefs.activeExtraDbs.clear();
     for (int i = 0; i < idxLV->count(); i++) {
@@ -441,6 +452,15 @@ void UIPrefsDialog::resetSnipCss()
     snipCssPB->setText(tr("Choose"));
 }
 
+void UIPrefsDialog::showSynFileDialog()
+{
+    synFile = myGetFileName(false, "Select synonyms file", true);
+    if (synFile.isEmpty())
+        return;
+    string nm = path_getsimple((const char *)synFile.toLocal8Bit());
+    synFilePB->setText(QString::fromLocal8Bit(nm.c_str()));
+}
+
 void UIPrefsDialog::resetReslistFont()
 {
     reslistFontFamily = "";
diff --git a/src/qtgui/uiprefs_w.h b/src/qtgui/uiprefs_w.h
index a422c0d5..706856c9 100644
--- a/src/qtgui/uiprefs_w.h
+++ b/src/qtgui/uiprefs_w.h
@@ -42,6 +42,7 @@ public:
     int reslistFontSize;
     QString qssFile;
     QString snipCssFile;
+    QString synFile;
 
     virtual void init();
 
@@ -49,6 +50,7 @@ public slots:
     virtual void showFontDialog();
     virtual void resetReslistFont();
     virtual void showStylesheetDialog();
+    virtual void showSynFileDialog();
     virtual void showSnipCssDialog();
     virtual void resetStylesheet();
     virtual void resetSnipCss();