Noun:
1: smartness, smarting, smart a kind of pain such as that caused by a wound or a burn or a sore
Verb:
1: smart, ache, hurt be the source of pain
Adjective:
1: canny, sharp, astute, street smart, cagy, with-it, clever, smart, cagey, streetwise, shrewd showing mental alertness and calculation and resourcefulness
2: stylish, fashionable, voguish, chic, smart elegant and stylish; "chic elegance"; "a smart new dress"; "a suit of voguish cut"
3: bright, intelligent, smart characterized by quickness and ease in learning; "some children are brighter in one subject than another"; "smart children talk earlier than the average"
4: forward, saucy, impertinent, smart, fresh, impudent, sassy, overbold, wise 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!"
5: intense, smart painfully severe; "he gave the dog a smart blow"
6: fast, smart quick and brisk; "I gave him a smart salute"; "we walked at a smart pace"
7: automatic, smart capable of independent and apparently intelligent action; "smart weapons"