Class structure and Specs

Class structure noun - The organization of classes within a society.

Specs and class structure are semantically related. In some cases you can use "Specs" instead a noun phrase "Class structure".

Specs noun - A pair of lenses set in a frame that is held in place with ear supports and which are usually worn to correct vision.

Class structure and specs are semantically related. Sometimes you can use "Class structure" instead a noun "Specs".