the tip of the iceberg
US /ðə tɪp əv ði ˈaɪs.bɜːɡ/
UK /ðə tɪp əv ði ˈaɪs.bɜːɡ/

1.
hujung gunung ais
only a small, visible part of a much larger, hidden problem or situation
:
•
The recent scandal is just the tip of the iceberg; there's much more corruption to uncover.
Skandal baru-baru ini hanyalah hujung gunung ais; terdapat lebih banyak rasuah yang perlu didedahkan.
•
His current financial troubles are just the tip of the iceberg of his deeper debt problems.
Masalah kewangan semasanya hanyalah hujung gunung ais masalah hutangnya yang lebih mendalam.