[smart] adj (bef. 12c) 1: making one smart: causing a sharp stinging
2: marked by often sharp forceful activity or vigorous strength "a ~ pull of the starter cord"
3: brisk, spirited
4. a: mentally alert: bright b: knowledgeable c: shrewd "a ~ investment"
5. a: witty, clever b: pert, saucy "don't get ~ with me"
6. a: neat, trim b: stylish or elegant in dress or appearance c (1): sophisticated (2): characteristic of or patronized by fashionable society
7. a: being a guided missile "a laser-guided ~ bomb" b: operating by automation "a ~ machine tool" c: intelligent 3 -- smart.ly adv -- smart.ness n
[2]smart vi [ME smerten, fr. OE smeortan; akin to OHG smerzan to pain] (13c) 1: to cause or be the cause or seat of a sharp poignant pain; also: to feel or have such a pain
2. a: to feel or endure distress, remorse, or embarrassment "~ing from wounded vanity --W. L. Shirer" b: to pay a heavy or stinging penalty "would have to ~ for this foolishness" [3]smart n (13c) 1: a smarting pain; esp: a stinging local pain
2: poignant grief or remorse "was not the sort to get over ~s --Sir Winston Churchill"
3: an affectedly witty or fashionable person
4. pl, slang: intelligence, know-how [4]smart adv (13c): in a smart manner: smartly