Rename "show XX entries" drop down in DataTables

$('#example').dataTable( {
    "oLanguage": {
      "sLengthMenu": "Your words here _MENU_ and/or here",
    }
});

Demo | Docs

You can use this

$('#example').dataTable( {
    "oLanguage": {
      "sLengthMenu": "Display _MENU_ records",
    }
});

from https://datatables.net/docs/DataTables/1.9.beta.1/DataTable.defaults.oLanguage.html#sLengthMenu_details