Iceblink is a relatively uncommon word that describes the flickering light reflected from an expanse of ice on the horizon. This phenomenon is most commonly seen in polar regions during the winter months. Because of its rarity and specificity, there are few true synonyms for the word. Some words and phrases that might be used in its place include glimmer, glint, shimmer, or twinkle. You could also use more descriptive phrases like "flickering ice light" or "reflective ice glow." Regardless of the specific words used, the image of iceblink creates a sense of pristine, frozen beauty in the minds of those who experience it.