The word "discolorise" means to change the color of something, often causing it to become less attractive or damaged. There are several synonyms for this word, including bleach, fade, oxidize, tarnish, and corrode. Bleaching can be used to lighten the color of fabrics or hair, while fading is typically used to describe a loss of color over time due to exposure to sunlight or other elements. Oxidization often involves metals turning dull or rusty, while tarnishing can refer to a patina forming on silver or other materials. Finally, corroding involves the breakdown of materials due to chemical reactions, often leading to discoloration.