(1):

(p. pr. & vb. n.) of Twinkle

(2):

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

(3):

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

(4):

(n.) The time of a wink; a moment; an instant.