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English definition of “bleach”

bleach

noun [U] uk   /bliːtʃ/ us  
a strong chemical used for cleaning things or removing colour from thingsCleaning agents

bleach

verb [T or I] uk   /bliːtʃ/ us  
to remove the colour from something or make it lighter, with the use of chemicals or by the effect of light from the sun; to become lighter in this way : Gary's had his hair bleached. There was nothing there except for a pile of sun-bleached bones. The bones of oxen were bleaching in the sun beside the trail.Beauty treatmentsPale and colourless and causing colour to fade
(Definition of bleach from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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