What is the meaning behind the phrase 'dress nicely' or 'dress up'? How should one respond in such situations? - Quora
English with Karim - If you say that someone IS DRESSED UP TO THE NINES or DRESSED TO THE NINES, you mean that they are wearing very smart or elegant clothes. | Facebook
![Dress up – to wear nice (вишукано одягнутися). Example: It's a fancy restaurant so we have to dress up. | English idioms, Idioms, English language Dress up – to wear nice (вишукано одягнутися). Example: It's a fancy restaurant so we have to dress up. | English idioms, Idioms, English language](https://i.pinimg.com/originals/e7/4c/df/e74cdfa5c522817bdb817310902d4371.png)