Definitions from the OED:

The fact or condition of flowing, flow; course; concrete a current, stream. Obsolete. rare.

'Fluency; readiness of utterance; easiness of pronunciation’ (Johnson). Obsolete.

Running, rapid motion. (nonce-use.)

The course (of time); the time during which anything is current.

Of money: The fact or quality of being current or passing from man to man as a medium of exchange; circulation. Also figurative.

That which is current as a medium of exchange; the circulating medium (whether coins or notes); the money of a country in actual use.

Applied to a current medium of exchange when differing in value from the money of account

Formerly a name for native-born Australians, as distinguished from sterling, or English-born. Also attributive and as adj.

The fact or quality of being current, prevalent, or generally reported and accepted among mankind; prevalence, vogue; esp. of ideas, reports, etc.