From Longman Dictionary of Contemporary Englishtrade something ↔ in phrasal verbEXCHANGEto give something such as a car to the person you are buying a new one from, as part of the payment for He traded his old car in for a new model. → trade-in → trade→ See Verb table
Examples from the Corpus
trade in• That same Republican president and a Democratic Congress reformed welfare and the trade laws in 1987-1988.• Other rip-offs in the past have centred on everything from gold bullion to currency trading.• Time to stop taking it to the garage for new paint jobs, and instead get busy trading it in.• Where, for example, is there even a passing reference to the benefits of fair trade?• Without those heavy caveats, greenery will become one more excuse to foul up trade.• Cautious, defensive trading was evident in a rise by utilities.• Lieberman got the news of his nomination at an AFL-CIO trade union rally in Hartford.• And a sticky end ... marmalade shop to close after a century of trade Read in studio Good evening.trade-inˈtrade-in noun [countable] American EnglishBBTSELL a used car, piece of equipment etc that you give to a seller of a new one that you are buying as part of the payment SYN part exchange British English Are you going to give your Ford as a trade-in?trade-in price/value The trade-in value is roughly $3,000.Examples from the Corpus
trade-in• Your old computer isn't going to be worth much as a trade-in.• You negotiate the price of the model you want and pay a deposit either by cash or as a trade-in.• Next came mortgage buy-downs, trade-ins of existing homes and extra landscaping.• Nothing unusual in that, except that his trade-in was an S-class Merc.trade-in price/value• This may be the trade-in price of your existing car which means you won't have to dip into your savings.• Sellers may negotiate price, credit terms, delivery times, trade-in values and other aspects of the commercial transaction.From Longman Business Dictionarytrade something ↔ in phrasal verb [transitive] to give something, such as a car, as part of the payment for something you are buyingThe Toyota dealer only offered him $4,000 to trade it in. → see also trade-in → trade→ See Verb tabletrade-inˈtrade-in noun [countable, uncountable] American EnglishCOMMERCE a way of buying a new car, computer etc in which you give the seller your old car etc as part of the paymentSYNPART EXCHANGE BrEA dealer may accept old equipment as a trade-in on a new computer.They can’t afford a new car because thetrade-in value of the old one has dropped so much. 