All 4 Uses

abstract
in
Who's Afraid of Virginia Woolf?
(Auto-generated)

NICK: (Indicating the abstract painting) Who . . . who did the . . . ?
Act 1 *

abstract = not imitating external reality or objects of nature
MARTHA: [comparing the subject of biology to that of math] ... Biology's even better. It's less . . . abstruse.
GEORGE: Abstract.
MARTHA: ABSTRUSE! In the sense of recondite. (Sticks her tongue out at GEORGE) Don't you tell me words.
Act 1 *

abstract = of a concept or idea not associated with any specific instance
GEORGE: (A trifle abstracted) Oh, I've had it awhile.†
Act 1
MARTHA (Somewhat abstracted) Good for you.†
Act 2 *

Definitions:

(1) (abstract as in: abstract thought)
of a concept or idea not associated with any specific instance
(2) (abstract as in: read the abstract)
a summary; or to summarize -- especially academic writing
(3) (abstract as in: abstract art)
not imitating external reality or the objects of nature
(4) (abstracted as in: abstracted, so didn't notice)
lost in thought; or distracted by thoughts
(5) (abstracted as in: abstracted his wallet)
removed
(6) (meaning too rare to warrant focus)