Varnishing - to apply oil, synthetic, spirit, cellulose or water varnish to printed matter by hand or machine to enhance its appearance or increase its durability.

Vellum - the treated skin of a calf used as a writing material. The name is also used to describe a thick creamy book paper.

Vignette - this term usually refers to a single dot pattern that may start at 50% dot and gradually decrease to say 5% in a smooth graduation.