A “market” in the broad sense is the meeting of supply and demand.
This definition can be specified in more detail in rational, spatial, temporal, material terms. The term market can refer both to the abstract conflation of supply and demand in general and to a concrete conflation of a certain supply and demand in relation to a certain good in a certain place at a certain time.
The concept of the market can also refer to a physical place as well as an event taking place at a certain point in time.