demonstrative, n.All

A Demonstrative (n.) such ⁠​‌​​​‌​​​‌​‌‌​​​​‌​‌​​‌‌​‌​​‌​​​​​‌‌​​‌​​​‌‌​‌‌​⁠as this is nothing like a proper name: this is A makes sense, this is this none.