A system is a general set of parts, steps, or components that are connected to form a more complex whole. For example, a computer system contains processors, memory, electrical pathways, a power supply, etc. For a very different example, a business is a system made up of methods, procedures, and routines.
LINK / CITE ADD TO WORD LIST. adjective. The definition of decisive is having the ability to make decisions or something that determines what comes next. 1  An example of decisive is a person who always makes up her mind firmly and quickly.
A catalyst is an event or person causing a change. Getting kicked out of your parents' house might be a catalyst for becoming more independent. The noun catalyst is something or someone that causes a change and is derived from a Greek word. It can be somewhat ordinary, like a hot day being a catalyst for getting your hair cut really short. Or it can be major, like how the assassination of the archduke Franz Ferdinand of the Austro-Hungarian Empire is said to be a catalyst of World War I. Definitions of catalyst.