The old adage "for to him who has, will more be given..." — that those with existing status, privilege, wealth, etc. stand to benefit even more from it, compared to those without starting resources. In other words,"the rich get richer and the poor get poorer."
An unofficial path created as a consequence of active use caused by heavy traffic, usually representing the shortest or most easily navigated route between an origin and destination. Desire lines can be physical paths as well as paths to achieving particular outcomes in a system usability context (such as navigating websites or using a smartphone).
An object or system's properties that show the possible actions that can take be taken with it, thereby suggesting how they may interact with that system or object. For example, a button can look as if it needs to be turned or pushed, those characteristics communicating its affordances.