smart

I UK [smɑː(r)t] / US [smɑrt] adjective
Word forms "smart":
adjective smart comparative smarter superlative smartest
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1)

a) clean and neat in appearance and dressed in nice fashionable clothes, especially in a slightly formal way

Sandy's looking very smart today.

b) used about someone's clothes

a smart blue suit

2)

a) intelligent

Sophie is a smart hard-working student.

If you were smart, you'd buy now before prices go up.

They're smart enough to ask all the right questions.

b) done with intelligence or careful thought

Starting a pension scheme now would be a smart move.

a smart question

3) speaking or behaving in a clever or funny way that shows a lack of respect

boys who are punished for being smart in class

a smart answer/attitude

get smart with someone:

Don't get smart with me!

4) connected with rich fashionable people

one of the smarter suburbs of Rome

the smart set (= fashionable people):

a restaurant popular with the smart set

5) a smart movement is quick and full of force or energy

a smart rap on the knuckles

6) smart machines, especially weapons, use computer technology to make them effective

smart mines/bombs

Derived words:
smartly
UK / US adverb

a smartly dressed young man

He moved pretty smartly to block the goal.

smartness
noun uncountable
II UK [smɑː(r)t] / US [smɑrt] verb [intransitive]
Word forms "smart":
present tense I/you/we/they smart he/she/it smarts present participle smarting past tense smarted past participle smarted

1) to hurt with a sudden sharp pain

The smoke made my eyes smart.

2) [usually progressive] to become very upset by something that has happened or that someone has said or done

smart from:

The Prime Minister was still smarting from his defeat in the vote.

III UK [smɑː(r)t] / US [smɑrt] noun [singular]

1) a short sharp pain

2) a feeling of being upset by something that has happened or that someone has said or done

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See:

smarts