diff --git src/bp-activity/bp-activity-admin.php src/bp-activity/bp-activity-admin.php
index 7bb15b6..ed7cf32 100644
--- src/bp-activity/bp-activity-admin.php
+++ src/bp-activity/bp-activity-admin.php
@@ -903,7 +903,7 @@ function bp_activity_admin_index() {
 			<?php if ( !empty( $_REQUEST['aid'] ) ) : ?>
 				<?php printf( __( 'Activity related to ID #%s', 'buddypress' ), number_format_i18n( (int) $_REQUEST['aid'] ) ); ?>
 			<?php else : ?>
-				<?php _x( 'Activity', 'Admin SWA page', 'buddypress' ); ?>
+				<?php _ex( 'Activity', 'Admin SWA page', 'buddypress' ); ?>
 			<?php endif; ?>
 
 			<?php if ( !empty( $_REQUEST['s'] ) ) : ?>
diff --git src/bp-messages/bp-messages-template.php src/bp-messages/bp-messages-template.php
index 931582d..a84e7f7 100644
--- src/bp-messages/bp-messages-template.php
+++ src/bp-messages/bp-messages-template.php
@@ -826,15 +826,15 @@ function bp_messages_options() {
 
 	<select name="message-type-select" id="message-type-select">
 		<option value=""></option>
-		<option value="read"><?php _x('Read', 'Message dropdown filter', 'buddypress') ?></option>
-		<option value="unread"><?php _x('Unread', 'Message dropdown filter', 'buddypress') ?></option>
-		<option value="all"><?php _x('All', 'Message dropdown filter', 'buddypress') ?></option>
+		<option value="read"><?php _ex('Read', 'Message dropdown filter', 'buddypress') ?></option>
+		<option value="unread"><?php _ex('Unread', 'Message dropdown filter', 'buddypress') ?></option>
+		<option value="all"><?php _ex('All', 'Message dropdown filter', 'buddypress') ?></option>
 	</select> &nbsp;
 
 	<?php if ( ! bp_is_current_action( 'sentbox' ) && bp_is_current_action( 'notices' ) ) : ?>
 
-		<a href="#" id="mark_as_read"><?php _x('Mark as Read', 'Message management markup', 'buddypress') ?></a> &nbsp;
-		<a href="#" id="mark_as_unread"><?php _x('Mark as Unread', 'Message management markup', 'buddypress') ?></a> &nbsp;
+		<a href="#" id="mark_as_read"><?php _ex('Mark as Read', 'Message management markup', 'buddypress') ?></a> &nbsp;
+		<a href="#" id="mark_as_unread"><?php _ex('Mark as Unread', 'Message management markup', 'buddypress') ?></a> &nbsp;
 
 	<?php endif; ?>
 
diff --git src/bp-notifications/bp-notifications-template.php src/bp-notifications/bp-notifications-template.php
index 53d5d5a..c309c5e 100644
--- src/bp-notifications/bp-notifications-template.php
+++ src/bp-notifications/bp-notifications-template.php
@@ -792,7 +792,7 @@ function bp_the_notification_mark_unread_link() {
 		// Start the output buffer
 		ob_start(); ?>
 
-		<a href="<?php bp_the_notification_mark_unread_url(); ?>" class="mark-unread primary"><?php _x( 'Unread',  'Notification screen action', 'buddypress' ); ?></a>
+		<a href="<?php bp_the_notification_mark_unread_url(); ?>" class="mark-unread primary"><?php _ex( 'Unread',  'Notification screen action', 'buddypress' ); ?></a>
 
 		<?php $retval = ob_get_clean();