Oxford Dictionary English trade-in noun noun BrE BrE//ˈtreɪd ɪn// ; NAmE NAmE//ˈtreɪd ɪn// Add to my wordlistjump to other resultsa method of buying something by giving a used item as part of the payment for a new one; the used item itself the trade-in value of a car Do you have a trade-in? see also part exchangeSee trade-in in the Oxford Advanced American DictionaryCheck pronunciation: trade-in oxfordlearnersdictionaries.com