This is the 4800th most frequent Japanese word.
氷山
Iceberg.
This sentence uses '氷山' to describe a natural iceberg, referring to its physical characteristics.
氷山は水面に出ている部分が少ないです。
An iceberg has only a small part above the water surface.
This usage of '氷山' metaphorically refers to a situation where only a visible or small portion of a larger, hidden issue is considered.
問題の氷山の一角しか議論されていません。
Only the tip of the iceberg of the issue has been discussed.
Here, '氷山' is utilized literally to refer to a large iceberg encountered by an expedition team in a geographical context.