1. trade in - Noun
2. trade in - Verb
turn in as payment or part payment for a purchase
Source: WordNettrade-in
If we want more trade in the world, we should establish bilateral trade agreements with other democratic countries. That way we can control the decision-making process. The major economic countries of the world will enter into those agreements. Dana Rohrabacher
As a matter of fact I trade in accordance to my means and always leave myself an ample margin of safety. Edwin Lefèvre
Other powers will continue to enjoy an equal right to trade in and develop the natural resources of the occupied territory, for the economic development of which the investment of foreign capital is very desirable. Kōki Hirota
Men characterize pornography as something mental because their minds, their thoughts, their dreams, their fantasies, are more real to them than women's bodies or lives; in fact, men have used their social power to characterize a $10-billion-a-year trade in women as fantasy. Andrea Dworkin
Before you begin to trade in blame look in the mirror. African Proverb
If I were to trade in winding sheets, no one would die. Arabic Proverb