watermark
🇺🇸
/ˈwɔːtərmɑːrk/
🇬🇧
/ˈwɔːtəmɑːk/
A faint design or word that is printed on some papers to show they are special or to stop people from copying them.
The company added a watermark to the documents to prevent unauthorized use.
公司在文件上添加了浮水印,以防止未經授權的使用。