Expression: dressed to the nines

[Georgie]

English Language Tests, Intermediate level

ESL/EFL Test #217 "American English Idioms", question 7

The reason why Aurora is dressed to the nines is because she's got a date tonight. Doesn't she look great? What is the meaning of 'dressed to the nines?' .........

(a) dressed too casual for the occasion
(b) dressed up and looking great
(c) dressed in a size nine
(d) dressed in a plain-looking suit

English Language Tests, Intermediate level

ESL/EFL Test #217 "American English Idioms", answer 7

The reason why Aurora is dressed to the nines is because she's got a date tonight. Doesn't she look great? What is the meaning of 'dressed to the nines?' dressed up and looking great

Correct answer: (b) dressed up and looking great
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which is the correct answer and why?

English Learner George

[Prezbucky]

"dressed to the nines" means, roughly, "dressed formally/nicely/attractively"... if someone is wearing a nice suit, you could say that he's dressed to the nines.
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Billie Jean is not my lover. Hee.

[Prezbucky]

it usually has to do with formal clothing -- suits, dresses, etc.
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Billie Jean is not my lover. Hee.

[Hapkido]

[Saneta]

shouldn't it be: 'dressed up to the nines' ?- I have found it a dictionary..

thanks

[Beeesneees]

Both are common forms.
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