English Idioms About “Colors”
Idiom: Green with envy
Meaning: Consumed by envy; envious to the point where it is noticeable to others.
Example: She was green with envy when she saw my new car.

English Idioms About “Furniture”
Idiom: Lift the curtain
Meaning: To lift the curtain on something means: 1. to start. 2. to make something known or public; disclose.
Example: 1. It’s time to raise the curtain, guys. Let’s start working. 2. The company decided to lift the curtain on their new product.

English Idioms About “Numbers”
Idiom: Safety in numbers
Meaning: safety in numbers is the hypothesis that, by being part of a large physical group or mass, an individual is proportionally less likely to be the victim of a mishap, accident, attack, or other bad event.
Example: Nobody went sightseeing alone, knowing that there was safety in numbers.