social awareness or consciousness; the collective feelings, knowledge, and ideologies of a society, such as political, legal, and moral beliefs, that reflect and influence its existence

To nod one's head to show that a point has been understood; describes someone who is quick-witted and can readily grasp another person's meaning or intentions.

A Chinese character that combines the meanings of two or more existing characters to create a new meaning, one of the [[六书|六書|liu4 shu1]] methods of character formation.