The act of consigning.
On consignment With the provision that payment is expected only on completed sales and that unsold items may be returned to the one consigning: The retailer accepted the shipment on consignment.
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.