Definitions:
existing in thought or as an idea but not having a physical or concrete existence

relating to or denoting art that does not attempt to represent external reality, but rather seeks to achieve its effect using shapes, colours, and textures

consider something theoretically or separately from (something else)

extract or remove (something)

make a written summary of (an article or book)

a summary of the contents of a book, article, or speech

an abstract work of art