simple past tense and past participle of exchange contracts

A website that acts as a broker between parties that want to place bets with each other, working on similar principles to a stock market.

(cryptography) An exchange of peers' keys at the initialization phase of connection.

(chemistry) the reversible process whereby ions are exchanged between a solution and a solid or gel; cation exchange is the process used in a water softener

A building that trades stocks in of companies for money and vice versa. / An organisation that trades stocks in of companies for money and vice versa.

any equipment that establishes connections between telephones / the rooms housing such equipment

The exchange of currency from one country for currency from another country. / Foreign currency.

(inorganic chemistry) The normal form of ion exchange in which cations such as those of calcium are removed from solution

An obsolescent design of telephone exchange that uses Strowger switches as the call routing elements.

(Internet) A link exchange scheme where web sites display each other's banners.