1. The continuous forward movement of a body of water; such as, a river: Fred realized that he couldn't paddle against the current in the stream for much longer; so, he tried to move over to the side.
2. A flow of electricity: The lights flickered a lot last night because of the unsteady current during the storm.
3. A common movement or tendency in society: A current of popular belief often decides a presidential election.

The world's largest ocean current which circles the globe and feeds cold water into the Atlantic, Pacific, and Indian Oceans.

The vertical movement of air currents resulting from temperature variations: Mr. Air explained the facts concerning atmospheric convection currents and that they arose from the changing differences in heat and cold in the atmosphere.

Electricity that flows from a conductor to the ground or to another conductor because of something being wrong with the connections: Since there was a fault-current in the electrical system in Adam's old house, he often blew a fuse when he tried to turn on his lights.

A wind, ocean current, or other such movement in which the horizontal force is exactly balanced by the apparent force exerted on a moving object by the rotation of the Earth: When studying oceanography, Jill learned that the Gulf Stream, the Kuroshio Current, the Antarctic Circumpolar Current, and the Agulhas Current were all examples of geostrophic currents.