<p><strong>Verb (used without object)</strong></p><ul><li>to shine with a flickering gleam of light, as a star or distant light</li><li>to sparkle in the light: The diamond on her finger twinkled in the firelight</li><li>(of the eyes) to be bright with amusement, pleasure, etc.</li><li>to move flutteringly and quickly, as flashes of light; flit</li><li>Archaic: to wink; blink</li></ul><p><strong>Verb (used with object)</strong></p><ul><li>to emit (light) in intermittent gleams or flashes</li><li>Archaic: to wink (the eyes or eyelids)</li></ul><p><strong>Noun</strong></p><ul><li>a flickering or intermittent brightness or light</li><li>a scintillating brightness in the eyes; sparkle</li><li>the time required for a wink; a twinkling</li><li>Archaic: a wink</li></ul>