+#. TRANS: Validation error in form for registration, profile and group settings, etc.
+#: lib/nickname.php:145
+msgid "Nickname must have only lowercase letters and numbers and no spaces."
+msgstr "لقب باید شامل حروف کوچک و اعداد و بدون فاصله باشد."
+
+#. TRANS: Validation error in form for registration, profile and group settings, etc.
+#: lib/nickname.php:158
+msgid "Nickname cannot be empty."
+msgstr ""
+
+#. TRANS: Validation error in form for registration, profile and group settings, etc.
+#: lib/nickname.php:171
+#, php-format
+msgid "Nickname cannot be more than %d character long."
+msgid_plural "Nickname cannot be more than %d characters long."
+msgstr[0] ""
+