头
[名] head; hair or hair style; top; tip;
[形] head; (领头的; 次序居先的) lead;
[数] first; [方] last; previous;
[例句]他们头戴用夏季鲜花编成的花环。
They wore garlands of summer flowers in their hair.
正式一点是Chairman of the Board, 推荐印在名片上;Board Chairman也可以,口语较多用.副董事长 Vice Chairman of the Board