quick study
         n 1: someone able to acquire new knowledge and skills rapidly
               and easily; "she soaks up foreign languages like a sponge"
               [syn: {quick study}, {sponge}]

English Dictionary: quick-wittedness	by the DICT Development Group
From WordNet (r) 3.0 (2006) [wn]:
quick-witted adj mentally nimble and resourceful; "quick-witted debater"; "saved an embarrassing situation with quick-witted tact"
From WordNet (r) 3.0 (2006) [wn]:
quick-wittedness n intelligence as revealed by an ability to give correct responses without delay Synonym(s): mental quickness, quickness, quick-wittedness
From Webster's Revised Unabridged Dictionary (1913) [web1913]:
Quick-witted \Quick"-wit`ted\, a.       Having ready wit --Shak.
From Webster's Revised Unabridged Dictionary (1913) [web1913]:
Quick-wittedness \Quick"-wit`ted*ness\, n.       Readiness of wit. [bd]Celtic quick-wittedness.[b8] --M.       Arnold.