icehouse

/ˈaɪsˌhaʊs/
noun
  1. A building or structure used for storing ice, especially in the past before refrigerators were common.
    • They restored the historic icehouse and turned it into a small museum.
    • The old icehouse was built partly underground to keep the ice from melting.
    • In the 1800s, many large estates had an icehouse where blocks of ice were kept through the summer.