amortization - loss of value of belongings recorded in a company's books and also an accounting technique used to periodically lower the book value of certain assets over a set period of time, trade or profession - a group of activities one exercises for making a living while it typically requires knowledge, capabilities, expertise as well as taking care and responsibility, market - an actual or virtual place where buyers and sellers meet to exchange their products, barter - the exchange of goods and services for other goods and services without using money,

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