noun
[singular] :a quick flash of light :a sparkle or flicker of light
a twinkle in your eye
a friendly or happy expression in your eyes
in the twinkle of an eye
informal :very quickly :in a very short time
verb
twinkles; twinkled; twinkling
[no obj]
to shine with an unsteady light :to produce small flashes of light
of the eyes :to have a friendly or happy expression
US