Flicker
Definition 1 of 4
Pro Tip 1/3
Unreliable Light
Use 'flicker' for lights that are unpredictable and don't stay constant The lights began to flicker during the storm.
Pro Tip 2/3
Imminent 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 3/3
Sign of Life
A 'flicker' of something can suggest a small, barely noticeable sign of it. There was a flicker of recognition in his eyes.