The term "number of techniques" refers to a variety or range of methods, approaches, or procedures that are used in order to achieve something. It can also mean different ways of doing things or alternative solutions to a problem. The phrase is often used when discussing topics such as martial arts, where there may be several different fighting styles and moves; or in business management, where various strategies might be employed to improve efficiency or productivity. Essentially, the "number of techniques" refers to the variety of options available for achieving a particular goal or outcome.