English Dictionary

watermark

noun

A translucent design impressed on the surface of paper and visible when the paper is held to the light. / (by extension) A logo superimposed on a digital image, a television broadcast, etc.

The watermark on the document made it look official.

意味（1）

A translucent design impressed on the surface of paper and visible when the paper is held to the light.

意味（2）

(by extension) A logo superimposed on a digital image, a television broadcast, etc.

意味（3）

(computing) A value stored in a datafile to ensure its integrity, so that if the file's contents are changed then the watermark will no longer match the contents.

意味（4）

A mark indicating the level to which water has risen.