Modern money creates, transforms, transports, and possesses meaning by
virtue of how it is used. This article devises a framework for the sy
stematic study of monetary meaning. In particular, monetary meanings d
epend on the flow of money (both its proximate source and future direc
tion) and on who promulgates or issues it. Meanings also derive from h
ow money's use and flow are restricted and on monetary media. Monetari
zation quantifies social activities and introduces new equivalences an
d comparisons. The factors shaping meaning also underpin important typ
es of monetary variation (homogeneous vs. differentiated money; anonym
ous vs. personal; material vs. immaterial).