English主要词典
giveaway
Universal Words
noun, adjective
noun (informal)
1 something that a company gives free, usually with sth else that is for sale:
There's a giveaway with our magazine next month-a free CD!
2 something that makes you guess the real truth about sth/sb:
She pretended she wasn't excited but the expression on her face was a dead giveaway.
adjective [onlybeforenoun] (informal) (of prices) very low