From Longman Dictionary of Contemporary Englishthe set of somebody’s face/jaw/shoulders etcthe set of somebody’s face/jaw/shoulders etcthe expression on your face or the way you hold your body, which tells people how you are feeling From the set of her shoulders, it was clear that Sue was exhausted. the hard set of his face → set
Examples from the Corpus
the set of somebody’s face/jaw/shoulders etc• He hated the set of different faces glaring up at him night after night.• Something in the set of his shoulders suggested that his pursuers were not far behind.• Her husband's brow furrowed as he noted the set of her face. 