1. rest (noun): what is left over after everything else has be used, eaten, etc.
Wow. Your suitcase is already full of shirts and shoes. What are you going to do with the rest of your clothing?
2. room (noun): space
Do you have any room in your backpack for a couple more books?
3. pack (verb): fill a suitcase, box, or another container
You'd better start packing your bags tonight so we don't have to rush out the door tomorrow.
4. rain cats and dogs (idiom): rain very hard
Last night, I was walking home from work when it began raining cats and dogs. Unfortunately, I didn't havemy umbrella with me.
5. pick up (phrasal verb): buy something
Could you pick up some white socks from the store on your way home from work?
6. formal occasion (noun): an important event where people wear special clothing and behave politely
I sometimes rent a tuxedo for formal occasions. I don't want to buy one that I will only wear once every few years.
7. on the spur of the moment (idiom): without planning or preparation
She always makes decisions on the spur of the moment, so you never know what she's planning.
8. slacks (noun): good-quality pants
You don't have to wear a suit to the event, but you might want to wear a pair of nice slacks and a conservative tie.
9. make sense (idiom): have a clear meaning or a sensible explanation
It makes sense to ask teachers to wear a nice shirt and tie to work.
10. be decked out (idiom): dressed in formal clothes for special occasions
Everyone was shocked when my brother came to the barbecue decked out in a white tuxedo. Then, we realized he came to propose to his girlfriend.