| The graduates in their black robes and mortarboard hats were very proud and excited about graduating. |
| She brought with her the mortarboard cap that she had worn at her graduation. |
| Backstage earlier, McCaskill had given me tips on how to bobby pin the mortarboard cap to my head. |
| This was in fact the ancient version of the mortarboard before the top square was stiffened and the tump replaced by a tassel and button. |
| Back in the school disco, a man from Essex in a gown and mortarboard is energetically thwacking strangers with a cane. |
| In some countries, a mortarboard is referred to more traditionally as a trencher cap. |
