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Pronunciation varies by accent · noun
(countable, uncountable) Any substance used to whiten something; a bleach..
Use whitener when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Whitener means (countable, uncountable) Any substance used to whiten something; a bleach..
Common synonyms include bleach, bleaching agent, blanching agent.
The opposite depends on the specific sense.
Use whitener where its definition matches the intended context.
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