Noun:
1: smart, smarting, smartness a kind of pain such as that caused by a wound or a burn or a sore
Verb:
1: smart, hurt, ache be the source of pain
Adjective:
1: streetwise, sharp, cagy, with-it, clever, street smart, canny, smart, astute, cagey, shrewd showing mental alertness and calculation and resourcefulness
2: voguish, smart, stylish, chic, fashionable 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: impudent, smart, forward, wise, impertinent, overbold, sassy, saucy, fresh 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: smart, fast quick and brisk; "I gave him a smart salute"; "we walked at a smart pace"
7: smart, automatic capable of independent and apparently intelligent action; "smart weapons"