It means that it is extremely cold, that it freezes or freezes. Layer of ice that covers the snow-capped mountains. Cap of the polar zones . Icy, icy, cold, frigid. It can also mean Indifferent, undaunted, apathetic.
Relative to low temperatures, ice, and figuratively to the lack of feelings, which generates a feeling similar to cold. From the Latin gelu, us ("cold, ice, snow").