To sign one's initial(s), as an abbreviated signature.
A distinguished initial letter of a chapter or section of a document.
onset, part of a syllable that precedes the syllable nucleus in phonetics and phonology.
The first letter of a word or a name.
In plural, the first letter of each word of a person's full name considered as a unit.
Spatially first, placed at the beginning, in the first position; especially said of the first letter of a word.
Chronologically first, early; of or pertaining to the beginning, cause or origin.
To mark paper with a watermark.
To mark a datafile with a digital watermark.
A mark indicating the level to which water has risen.
A translucent design impressed on the surface of paper and visible when the paper is held to the light.
A logo superimposed on a digital image, a television broadcast, etc.
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.