Aart called the Chinese guy Chink.

Hey, chinky eyes!" "Why are you calling me that?"

There must be a chink in the armour somewhere.

A single ray of sunlight shone through a chink in the shuttered window.

It has a chink.

He constructed his cabin of small logs about six inches in diameter, stopping the chinks with clay which he found at the depth of a few feet beneath the surface soil.