INK

noun a pigment. ·see india ink, under india.

2. ink ·noun the step, or socket, in which the lower end of a millstone spindle runs.

3. ink ·vt to put ink upon; to supply with ink; to blacken, color, or daub with ink.

4. ink ·noun a fluid, or a viscous material or preparation of various kinds (commonly black or colored), used in writing or printing.