• cause (a material such as cloth, paper, or hair) to become white or much lighter by a chemical process or by exposure to sunlight

Synonyms: make/turn white, whiten, make/turn pale, make/turn pallid, blanch, lighten, fade, wash out, decolour, decolorize, peroxide, etiolate, go/grow/turn/become white, whiten, go/turn/grow/become pale, pale, go/grow/turn/become pallid, blanch, lose its colour, be washed out, lighten, fade, blench

• clean or sterilize (a drain, sink, etc.) with bleach

• a chemical (typically a solution of sodium hypochlorite or hydrogen peroxide) used to make materials whiter or for sterilizing drains, sinks, etc.