How would you describe ink?

Ink is a liquid or paste that contains pigments or dyes used for writing, printing, or drawing. It typically consists of a solvent, such as water or oil, along with additives that improve flow and adhesion. Available in various colors and formulations, ink is essential in art and communication, enabling the reproduction of text and images on various surfaces. Its composition can vary significantly depending on the intended application, such as fountain pen ink, printer ink, or tattoo ink.