current

This word has several meanings and can be applied as an adjective and a noun.

In the first instance, it means ‘up-to-date’; happening in the immediate present; commonly known and accepted (as in ‘current practice’).

As a noun, it refers to the natural flow of air or water in a particular direction. Thus, rivers and winds are often driven by currents.

The word is applied symbolically to trends, conventions and change.