Wiktionary
vb. to give a piece of merchandise as part of the payment or trade for something new.
WordNet
v. turn in as payment or part payment for a purchase; "trade in an old car for a new one" [syn: trade]
Wikipedia
Trade In is a 2009 comedy film in post production, directed by Jackie Lee James. The film was written by Jason Moore, Kris Sharma and Drew Grubich. The film stars Chris Mascarelli, Tiffany Shepis, and Christina Leigh.
Usage examples of "trade in".
If America brings up none of her people to a seafaring life before the mast, now that her population is upwards of 13,000,000, still less likely was she to have done it when her population was less, and the openings to wealth by other channels were greater: from whence it may be fairly inferred, that, during our continued struggle with France, when America had the carrying trade in her hands, her vessels were chiefly manned by british seamen.
Over the last years you have persuaded us to go beyond trade in helping to arm and outfit you.
Tagomi said, placing his briefcase on the counter and unzipping it, 'I wish to trade in an item bought several years ago.
Jamaica was the centre of a small trade in ice, brought down from New England in fast schooners.
You will find here representatives of many worlds, far systems and near, conducting their important trade in perfect amity, hosted by three races, the Kanddoyd, the Shver, and the Terrans.
Freeing up international trade in itself, in a general sense, is not a bad thing.
As for a regular business, well, I'd be ill at ease on a plantation, but the trade in timber, furs, gold, ores—.
She packed the products that she obtained in trade in a separate bundle.