Meanings
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1
noun
Something given to people for free, often to promote a product.
The free T-shirt was a giveaway from the software company.
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2
noun
Something that accidentally reveals a secret or makes the truth obvious.
His nervous laugh was a dead giveaway that he was lying.
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3
adj
So low as to be almost free.
The shop sold the old stock at giveaway prices.
Thesaurus
Etymology
Deverbal from give away.