exchanging diary between friends (usually at school)
 fair exchange;  equivalent exchange;  exchange of equal value
 collecting waste paper (old newspapers etc.) and exchanging them for tissues
 bargaining point;  terms of exchange;  conditions for meeting a demand
 exchange of ideas;  exchange of opinions;  brainstorming
 exchanging business cards
 exchangeable;  convertible;  transferable;  replaceable
 (student) exchange;  study abroad
 murder swap;  murder exchange;  murder of each other's targets by co-conspirators
 exchange (something) together
 (telephone) switchboard;  switchboard operator
 exchange of letters;  correspondence
 collecting waste paper (old newspapers etc.) and exchanging them for tissues
 thing bartered;  trade-in;  substitute;  replacement;  exchange
 exchange function;  swapping capability
 New Year party where greetings (or business cards, etc.) are exchanged
 file exchange;  file swapping;  file sharing
 Treaty of Saint Petersburg (1875);  Russo-Japanese treaty in which Japan exchanged Sakhalin for the Kuril Islands
 exchange of silver generals
 electronic data interchange;  EDI
 switching capacity;  switching ability
 demand for replacement;  request for replacement;  need for replacement
 Columbian exchange;  widespread exchange of animals, plants, culture, disease, and ideas between the Old and New Worlds
 sister chromatid exchange
 exchange and consolidation (of lands)