good better best
If you are good at something, you are skilful and successful at doing it.
He was very good at his work.
I'm not very good at singing.
He is one of the best players in the world.
I always played football with my older brother because I was good for my age.
* bad, poor
good better best
If something is good for a person or organization, it benefits them.
Rain water was once considered to be good for the complexion.
Nancy chose the product because it is better for the environment.
good
If something changes or disappears for good, it never changes back or comes back as it was before.
The days of big-time racing at Herne Hill had gone for good.
A few shots of this drug cleared up the disease for good.
good
If someone is good for something, you can rely on them to provide that thing.
Joe was always good for a colorful quote.
She heard her father shouting that her mother was stupid, useless, and good for nothing but her money.