The term 'copious supply' can be defined as a large amount of something. This is often referred to as a LODE (4 letters) or an ABUNDANCE (9 letters). A copious supply is usually used to describe a plentiful amount of a certain resource, such as food, water, or money. It can also be used to describe a large number of people or objects. In either case, it implies that there is more than enough of the resource or object to meet the needs of those involved.