"Berg ices" is a phrase that refers to large chunks of ice that break off from glaciers or ice shelves and float in the ocean. There are a few different synonyms that could be used to describe berg ices, including icebergs, ice floes, and glacial calvings. Icebergs are perhaps the most commonly used term, and usually refer to particularly large chunks of ice that may pose a hazard to ships. Ice floes are smaller chunks of ice that may also float in the ocean, while glacial calvings specifically refer to the process of large chunks of ice breaking off from glaciers or ice shelves. All of these terms can be used interchangeably to describe berg ices.