(Canada, countable, uncountable) A powder added to tea or coffee in place of milk.
(Canada, countable, uncountable) A powder added to tea or coffee in place of milk. A "non-dairy creamer".
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(countable, uncountable) Any substance used to whiten something; a bleach.
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Whitener means: Any substance used to whiten something; a bleach.. It has drug-related associations; worth a calm conversation about which side of the topic your teen is on. If your teen uses it, context will usually make the intent clear. A short, curious question about where they heard it is usually all that is needed to know whether to follow up.
whitener means: Any substance used to whiten something; a bleach.. Register: very informal, often derogatory or vulgar. Avoid in formal, business, academic, or polite writing. Even in casual speech the word can offend and is best left out of a learner's active vocabulary. A common learner mistake is using the word in a register it does not fit, or assuming a single global meaning; native speakers immediately notice when slang appears in formal contexts, so always check the surrounding register before producing it yourself.
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(countable) A person employed to whiten or bleach.
“We're out of milk (because SOMEONE probably stole it again) so I had to use coffee whitener in my tea”
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