Biscuit and Khakis

Biscuit noun - Small round bread leavened with baking-powder or soda.

Khakis and biscuit are semantically related In some cases you can use "Khakis" instead a noun "Biscuit".

Khakis noun - A military uniform made of khaki fabric.

Biscuit and khakis are semantically related in light brown topic. Sometimes you can use "Biscuit" instead a noun "Khakis", if it concerns topics such as light brown color.