be good for something

be good for (someone or something)

To have a positive effect on someone or something. More sunlight will be good for your drooping plants.
See also: good

good for (someone or something)

1. Having a positive effect on someone or something. More sunlight will be good for your drooping plants.
2. Able to pay a debt owed. I'm good for the money, don't worry. I'll get it to you first thing tomorrow.
3. Able to work or function. I know it's a used car, but I think it's good for a few more years.
4. Valid or in effect. How long is this warranty good for? Is this coupon really good for 50% off our total purchase?
5. An expression of approval or support of someone for something they have done or accomplished. I heard you got the promotion—good for you! Good for him, getting an A in that difficult class.
See also: good

be ˈgood for something


1 be likely to be able to give or provide something: I’ll ask my aunt if she can help us. She’ll be good for a small loan, I’m sure.
2 be likely to live, last, etc. for a period of time: This car’s probably good for another 20 000 miles.
See also: good, something