head·er
noun/ˈhedə(r)/
/ˈhedər/
- (in football (soccer)) an act of hitting the ball with your head
用头顶球；头球 - a line or block of text that appears at the top of every page in a book or document
页眉； - The header gives the page number and date of the document.
页眉印有页码和文档日期。
see also double-header - The header gives the page number and date of the document.