good

Of a person or an animal:

good intentions

c. 1525, The Example of Euyll Tongues, page a3 rectoː Yf ony man wolde begynne his synnes to reny / Or ony good people that fro vyce dyde refrayne / What so euer he were that to vertue wolde applye / But an yll tonge wyll all ouer throwe agayne If any man would begin to renounce his sins, / Or any good people who refrained from vice, / Whatsoever he who wished to apply himself to virtue might be, / Still an ill tongue would overthrow it all again.

Of a person or an animal:

a good swimmer

Flatter him it may, I confess, (as those are generally good at flattering who are good for nothing else,) but in the meantime the poor man is left under the fatal necessity of a needless delusion

Of a person or an animal:

Can you lend me fifty dollars? You know I'm good for it.

Of a person or an animal:

Be good while your mother and I are out.

Were you a good boy for the babysitter?

Of a person or an animal:

Would you like a glass of water? — I'm good.

[Are] you good? — Yeah, I'm fine.

That is good; an elliptical exclamation of satisfaction or commendation.

Good! I can leave now.

Well; satisfactorily or thoroughly.

When you're cleaning these racks, you've got to get in there good, because the quality system specifies it.

The boy done good.