Abstact
content-performance matrix, what measures application for concepts?
taxonomy
models help the understanding of abstract concepts.
potatoe
Somehow spiritual, celestial beings, like angels, and logical abstact concepts like maths do not mix easily.
Anxiety
Bravery
Anxiety
suggested is a verb.
Abstact
Oppression is an abstact noun.
He was called "the king of abstact"
Ability is the abstract noun form.
he is famous for art. he did a lot of abstact paintings.
The abstract noun for the verb to perform is performance.
on the carpet