Translation of "gesek" into English

Saat dilepaskan, buih-buih itu akan mengurangi gaya gesek di permukaan bulu sehingga dia bisa bergerak lebih cepat.

As these bubbles are released, they reduce friction on the surface of the penguin’s plumage, enabling the bird to accelerate.

Saya menempatkan tongkat pada senar biola dan menggesek nada pertama.

I placed my bow on the violin strings and struck the first note.