Printing ink is a viscous fluid that is used for printing text and images on different surfaces like paper, fabrics, plastic and others. Synonyms for printing ink may vary depending on the context and the type of ink. Some common synonyms for printing ink include printing dye, printing color, printing pigment, printing liquid and printing composition. Another synonym may be printer's ink, which is commonly used by professional printmaking businesses. Other alternatives include ink for printing, ink for lithography, typography ink, gravure ink, and flexography ink. Different inks may be used for specific printing processes, and their synonyms may vary accordingly. Overall, there are numerous synonyms for printing ink that can help accurately describe its use in different contexts.