diff --git a/tests/Controller/PluginControllerTest.php b/tests/Controller/PluginControllerTest.php
index 40d4eb5f..12ef1168 100644
--- a/tests/Controller/PluginControllerTest.php
+++ b/tests/Controller/PluginControllerTest.php
@@ -28,7 +28,7 @@ class PluginControllerTest extends ControllerBaseTest
     {
         $client = $this->getClientForAuthenticatedUser(User::ROLE_SUPER_ADMIN);
         $this->assertAccessIsGranted($client, '/admin/plugins/');
-        $this->assertCalloutWidgetWithMessage($client, 'You have no plugin installed yet');
+        $this->assertCalloutWidgetWithMessage($client, 'You have no plugins installed yet');
         $this->assertPageActions($client, ['shop' => 'https://www.kimai.org/store/']);
     }
 
diff --git a/translations/messages.en.xliff b/translations/messages.en.xliff
index 46dc79ac..dfe0e7b1 100644
--- a/translations/messages.en.xliff
+++ b/translations/messages.en.xliff
@@ -118,7 +118,7 @@
             </trans-unit>
             <trans-unit id="menu.admin_customer">
                 <source>menu.admin_customer</source>
-                <target>Customer</target>
+                <target>Customers</target>
             </trans-unit>
             <trans-unit id="menu.admin_project">
                 <source>menu.admin_project</source>
@@ -130,7 +130,7 @@
             </trans-unit>
             <trans-unit id="menu.admin_user">
                 <source>menu.admin_user</source>
-                <target>User</target>
+                <target>Users</target>
             </trans-unit>
             <trans-unit id="menu.plugin">
                 <source>menu.plugin</source>
@@ -306,7 +306,7 @@
             </trans-unit>
             <trans-unit id="dashboard.all">
                 <source>dashboard.all</source>
-                <target>All user</target>
+                <target>All users</target>
             </trans-unit>
 
             <!--
@@ -455,7 +455,7 @@
             </trans-unit>
             <trans-unit id="admin_timesheet.subtitle">
                 <source>admin_timesheet.subtitle</source>
-                <target>Records of all user</target>
+                <target>Records of all users</target>
             </trans-unit>
 
             <!--
@@ -467,13 +467,13 @@
             </trans-unit>
             <trans-unit id="admin_project.subtitle">
                 <source>admin_project.subtitle</source>
-                <target>A project combines activities for a customer in a group</target>
+                <target>A project combines activities for a customer into a group</target>
             </trans-unit>
             <trans-unit id="admin_project.short_stats">
                 <source>admin_project.short_stats</source>
                 <target>
                     Currently the project %project% for the customer %customer% has %activities%
-                    activities and %records% time-records, which count up to a total of %duration%.
+                    activities and %records% time-records, which sum up to a total of %duration%.
                 </target>
             </trans-unit>
 
@@ -492,7 +492,7 @@
                 <source>admin_activity.short_stats</source>
                 <target>
                     Currently the activity %activity% in the project %project% for the customer %customer%
-                    has %records% time-records, which count up to a total of %duration%.
+                    has %records% time-records, which sum up to a total of %duration%.
                 </target>
             </trans-unit>
 
@@ -505,7 +505,7 @@
             </trans-unit>
             <trans-unit id="admin_customer.subtitle">
                 <source>admin_customer.subtitle</source>
-                <target>Your customer are the base for creating projects and activities</target>
+                <target>Your customers are the base for creating projects and activities</target>
             </trans-unit>
             <trans-unit id="label.number">
                 <source>label.number</source>
@@ -558,13 +558,13 @@
             <trans-unit id="admin_customer.short_stats">
                 <source>admin_customer.short_stats</source>
                 <target>
-                    Currently the customer %customer% has %project% projects with %activity% activities, which count up
+                    Currently the customer %customer% has %project% projects with %activity% activities, which sum up
                     in %records% time-records to a total of %duration%.
                 </target>
             </trans-unit>
 
             <!--
-              Admin: User
+              Admin: Users
             -->
             <trans-unit id="admin_user.title">
                 <source>admin_user.title</source>
@@ -572,7 +572,7 @@
             </trans-unit>
             <trans-unit id="admin_user.subtitle">
                 <source>admin_user.subtitle</source>
-                <target>All registered user of your Kimai installation</target>
+                <target>All registered users of your Kimai installation</target>
             </trans-unit>
             <trans-unit id="label.alias">
                 <source>label.alias</source>
@@ -597,7 +597,7 @@
             <trans-unit id="admin_user.short_stats">
                 <source>admin_user.short_stats</source>
                 <target>
-                    Currently the user %user% has %records% time-records which count up to a total of %duration%.
+                    Currently the user %user% has %records% time-records which sum up to a total of %duration%.
                 </target>
             </trans-unit>
 
@@ -678,7 +678,7 @@
             </trans-unit>
             <trans-unit id="stats.amountTotal">
                 <source>stats.amountTotal</source>
-                <target>Revenue total</target>
+                <target>Total revenue</target>
             </trans-unit>
             <trans-unit id="stats.userActiveToday">
                 <source>stats.userActiveToday</source>
@@ -706,19 +706,19 @@
             </trans-unit>
             <trans-unit id="stats.userTotal">
                 <source>stats.userTotal</source>
-                <target>Amount users</target>
+                <target>Users</target>
             </trans-unit>
             <trans-unit id="stats.activityTotal">
                 <source>stats.activityTotal</source>
-                <target>Amount activities</target>
+                <target>Activities</target>
             </trans-unit>
             <trans-unit id="stats.projectTotal">
                 <source>stats.projectTotal</source>
-                <target>Amount projects</target>
+                <target>Projects</target>
             </trans-unit>
             <trans-unit id="stats.customerTotal">
                 <source>stats.customerTotal</source>
-                <target>Amount customers</target>
+                <target>Customers</target>
             </trans-unit>
 
             <!--
@@ -730,7 +730,7 @@
             </trans-unit>
             <trans-unit id="admin_invoice_template.subtitle">
                 <source>admin_invoice_template.subtitle</source>
-                <target>Administrate your invoice templates which can be used to data export.</target>
+                <target>Administrate your invoice templates which can be used to export data.</target>
             </trans-unit>
             <trans-unit id="invoice.title">
                 <source>invoice.title</source>
@@ -826,11 +826,11 @@
             </trans-unit>
             <trans-unit id="invoice.signature_user">
                 <source>invoice.signature_user</source>
-                <target>Confirmation: Date / Name Consultant / Signature</target>
+                <target>Confirmation: Date / Consultant's name / Signature</target>
             </trans-unit>
             <trans-unit id="invoice.signature_customer">
                 <source>invoice.signature_customer</source>
-                <target>Confirmation: Date / Name Customer / Signature</target>
+                <target>Confirmation: Date / Customer's name / Signature</target>
             </trans-unit>
             <trans-unit id="invoice.total_working_time">
                 <source>invoice.total_working_time</source>
diff --git a/translations/plugins.en.xliff b/translations/plugins.en.xliff
index 336cf2e9..b53bb866 100644
--- a/translations/plugins.en.xliff
+++ b/translations/plugins.en.xliff
@@ -12,7 +12,7 @@
             </trans-unit>
             <trans-unit id="plugin.none_installed">
                 <source>plugin.none_installed</source>
-                <target>You have no plugin installed yet.</target>
+                <target>You have no plugins installed yet.</target>
             </trans-unit>
             <trans-unit id="plugin.marketplace">
                 <source>plugin.marketplace</source>
diff --git a/translations/system-configuration.en.xliff b/translations/system-configuration.en.xliff
index 2f623a3f..01241b8b 100644
--- a/translations/system-configuration.en.xliff
+++ b/translations/system-configuration.en.xliff
@@ -16,11 +16,11 @@
             </trans-unit>
             <trans-unit id="form_customer">
                 <source>form_customer</source>
-                <target>Create customer - default values</target>
+                <target>Create customer—default values</target>
             </trans-unit>
             <trans-unit id="form_user">
                 <source>form_user</source>
-                <target>User - default values</target>
+                <target>User—default values</target>
             </trans-unit>
             <trans-unit id="theme">
                 <source>theme</source>
@@ -48,7 +48,7 @@
             </trans-unit>
             <trans-unit id="label.timesheet.mode_duration_fixed_begin">
                 <source>label.timesheet.mode_duration_fixed_begin</source>
-                <target>[Duration] Configurable fixed start-time, only duration can be changed</target>
+                <target>[Duration] configurable fixed start-time, only duration can be changed</target>
             </trans-unit>
             <trans-unit id="label.timesheet.mode_punch">
                 <source>label.timesheet.mode_punch</source>
diff --git a/translations/tags.en.xliff b/translations/tags.en.xliff
index d20021e7..d8697c89 100644
--- a/translations/tags.en.xliff
+++ b/translations/tags.en.xliff
@@ -8,7 +8,7 @@
             </trans-unit>
             <trans-unit id="tags.subtitle">
                 <source>tags.subtitle</source>
-                <target>Tags allow, to freely combine timesheet records into a resultset</target>
+                <target>Tags allow for the free combination of timesheet records into a result-set</target>
             </trans-unit>
         </body>
     </file>