冰箱 is a subset of 雪櫃。
雪櫃: 雪 refers to snow , 櫃 refers to shelf
冰箱: 冰 refers to ice/frozen, 箱 refers to box
Refrigerator in German language: Kühlschrank
Kühl: cool
schrank: cupboard
In this sense, Cantonese language is similar to German in that the word /phrase actually is inherently descriptive, unlike the word 'refrigerator.
Once you realize how the Cantonese language constructs words, then it will be rather easy to pick up this language!!!!