Glare-ice, also known as black ice, is a treacherous and dangerous phenomenon that occurs when a thin layer of transparent ice forms on roads or surfaces, making it difficult to detect. Fortunately, there are various synonyms that can be used to describe this hazardous condition. One term often used interchangeably with glare-ice is "transparent ice." This term accurately depicts the characteristic quality of the ice, which appears practically invisible, hence the hidden danger. Additionally, the term "slick ice" can also be employed to describe glare-ice, highlighting the slippery nature of the frozen surface. Ultimately, the synonyms for glare-ice alert drivers and pedestrians to exercise extreme caution when encountering such treacherous conditions.