From WordNet (r) 3.0 (2006):
smart
adj 1: showing mental alertness and calculation and
resourcefulness [ant: stupid]
2: elegant and stylish; "chic elegance"; "a smart new dress"; "a
suit of voguish cut" [syn: chic, smart, voguish]
3: characterized by quickness and ease in learning; "some
children are brighter in one subject than another"; "smart
children talk earlier than the average" [syn: bright,
smart]
4: improperly forward or bold; "don't be fresh with me";
"impertinent of a child to lecture a grownup"; "an impudent
boy given to insulting strangers"; "Don't get wise with me!"
[syn: fresh, impertinent, impudent, overbold,
smart, saucy, sassy, wise]
5: painfully severe; "he gave the dog a smart blow"
6: quick and brisk; "I gave him a smart salute"; "we walked at a
smart pace"
7: capable of independent and apparently intelligent action;
"smart weapons"
n 1: a kind of pain such as that caused by a wound or a burn or
a sore [syn: smart, smarting, smartness]
v 1: be the source of pain [syn: ache, smart, hurt]