氷山

1. Origins, structure, and basic meaning

• Structure: 氷山 (ひょうざん) is an iceberg floating in the sea.
• Basic usage: 氷山が浮かぶ presents the visible mass; 氷山の大きさ includes the portion hidden below the surface.

2. Common pitfalls and similar expressions

• Visible ice and total iceberg size
  • The second context explicitly includes 水面下に隠れた ice, so the visible top is not the whole referent.