n. 25B6; adjective
abstract concepts : THEORETICAL, conceptual, notional, intellectual, metaphysical, philosophical, academic; rare ideational.
abstract art : NON-REPRESENTATIONAL, non-pictorial.
actual, concrete.
25B6; verb
staff abstract material for an online database : SUMMARIZE, precis, abridge, condense, compress, shorten, cut down, abbreviate, synopsize; rare epitomize.
a scheme to abstract more water from the river : EXTRACT, pump, draw (off), withdraw, remove, take out/away; separate, isolate.
25B6; noun an abstract of her speech : SUMMARY, synopsis, precis, résumé, outline, abridgement, digest, summation; N. Amer. wrap-up; archaic argument.