Green with envy/ jealousy.
The green-eyed monster.
Living a green life. (Can you really?)
The grass is always greener on the other side.
People turn green when they are sick.
US currency is green. Green-backs.
Green has come to be one of my favorite colors. I love green vegetables.
Dark green foods are good for you, unless you are on blood thinners.
I found a four-leaf green shamrock once. I think I still have it pressed somewhere.
Go Green. (I still haven’t figured that one out.)