Plate-mark refers to an indentation or marking on a plate or surface. It can be used in various contexts, such as printing, manufacturing, and art. Synonyms for the word plate-mark include impression, dent, groove, stamp, etching, embossment, imprint, and delineation. These words can be used interchangeably depending on the specific context. For instance, a printing press may leave an impression on a paper, while an industrial machine may leave a dent or groove on a metal plate. Similarly, an artist may use an etching technique to create a plate-mark on a copper plate or wood block. Overall, these synonyms offer a wide range of options to express the same concept in various ways.