A shining with intermitted light; a scintillation; a sparkling; as, the twinkling of the stars.

shining intermittently with a sparkling light; "twinkling stars"

See scintillation.

The act of one who, or of that which, twinkles; a quick movement of the eye; a wink; a twinkle.

The time of a wink; a moment; an instant.

a very short time (as the time it takes the eye blink or the heart to beat); "if I had the chance I'd do it in a flash"