名詞： 1. a concept or idea not associated with any specific instance; 例子 "he loved her only in the abstract--not in person"2. a sketchy summary of the main points of an argument or theory
動詞： 3. consider a concept without thinking of a specific example; consider abstractly or theoretically4. make off with belongings of others
5. consider apart from a particular case or instance; "Let's abstract away from this particular example"
6. give an abstract (of)
形容詞： 7. existing only in the mind; separated from embodiment; "abstract words like `truth' and `justice'"8. not representing or imitating external reality or the objects of nature; "a large abstract painting"
9. based on specialized theory; 相似 "a theoretical analysis"
10. dealing with a subject in the abstract without practical purpose or intention; "abstract reasoning"; "abstract science"