What term describes the number of times per second that an alternating current makes a complete cycle?

"Frequency" is the term used to describe how many complete cycles an alternating current (or any wave) makes in exactly one second. It tells us how frequently a repeating event occurs. "Wavelength" is a common distractor, but it describes the physical distance of one cycle rather than the rate of cycles over time. Terms like "Pulse rate" and "Wave number" are used in other scientific contexts but do not describe the cycles per second of alternating current.