Exclusive form of grammar is used to refer to a specific object only.

He is learning Ancient Greek language.

He quoted the old phrase 'seeking a sword in a boat carved' to explain the absurdity of hoping for success without effort.

This experience is something I should carve into my bones and engrave in my liver.

Old Church Slavonic is the oldest recorded language of the Slavic group.

Old Church Slavonic is the first language written by the Slavs.

The characteristic of annelids is that their bodies are divided into ring-shaped segments.

This butterfly valve is used to control the flow of fluid.

He explained in detail about the structure of the sphenoid bone.

He drew a straight line using a T-square.