• IPA ^{( key )} : /m?.n? d?e.????/

monnaie d’ echange   f ( usually uncountable , plural monnaies d’echange )

1. coin of the realm ( something that is valued like money within a particular context )

   servir de monnaie d’echange ― to be used as a bartering system

2. bargaining chip ( something or someone used as a leverage in negotiations )