abstract
adjective
uk/ˈæbstrækt/ usexisting as an idea, feeling, or quality, not as a material object:
"Satisfaction" is difficult to measure as it is an abstract concept.
abstract
noun [ C ]
uk/ˈæbstrækt/ usa shortened form of a speech, article, book, etc., giving the most important facts or ideas:
There is a section at the end of the magazine which includes abstracts of recent articles.