Hard currency is a form of money that is widely accepted and has a stable value. It is often used in international transactions and is backed by a government or central bank. The term 'hard currency' is often used to refer to the most commonly accepted forms of currency, such as the US dollar, the Euro, and the British pound. The crossword solution for the term 'hard currency' is 'CASH', which is a physical form of money that is widely accepted and can be exchanged for goods and services.