Jiff vs. Jiffy — What's the Difference?

A jiffy.

A short space of time; a moment.

(informal) A jiffy; a moment; a short time.

(colloquial) A very short, unspecified length of time.

(computing) A unit of time defined by the frequency of its basic timer – historically, and by convention, 0.01 of a second, but some computer operating systems use other values.

(electronics) The length of an alternating current power cycle (1/60 or 1/50 of a second).

(physics) The time taken for light to travel a specified distance in a vacuum, usually one centimetre, but sometimes one foot or the width of a nucleon.

(UK) nodot=a, a padded envelope.

A moment; an instant; as, I will be ready in a jiffy.

A very short time (as the time it takes the eye blink or the heart to beat);