watermark

English Thesaurus

1. a distinguishing mark impressed on paper during manufacture; visible when paper is held up to the light (noun.communication)

hypernym	:	mark, marker, marking,
definition	:	a distinguishing symbol (noun.communication)

2. a line marking the level reached by a body of water (noun.location)

hypernym	:	line,
definition	:	a spatial location defined by a real or imaginary unidimensional extent (noun.location)

hyponym	:	high-water mark,
definition	:	a line marking the highest level reached (noun.location)

hyponym	:	low-water mark,
definition	:	a line marking the lowest level reached (noun.location)