bleaching >> /bliːtʃ/
Definition: [verb] Cause (a material such as cloth, paper, or hair) to become white or much lighter by a chemical process or by exposure to sunlight.
Example: a new formula to bleach and brighten clothing
Definition: [verb] Clean or sterilize (a drain, sink, etc.) with bleach.
Example: Baths foreman Frank Hardcastle had a four-day job of cleaning the tiles and bleaching the pool floor.
Definition: [noun] A chemical (typically a solution of sodium hypochlorite or hydrogen peroxide) used to make materials whiter or for sterilizing drains, sinks, etc.
Example: how can I get all those stains out of my wash without bleach?