Flicker/ˈflɪkər/ Definition 1 of 4Pro Tip 1/3Unreliable Light Use 'flicker' for lights that are unpredictable and don't stay constant The lights began to flicker during the storm. Pro Tip 2/3Imminent Change 'Flicker' often implies a light is about to change, often going out or being unstable. The old TV's image flickered before turning to static. Pro Tip 3/3Sign of Life A 'flicker' of something can suggest a small, barely noticeable sign of it. There was a flicker of recognition in his eyes.