Good means pleasant or enjoyable.

Good means of a high quality, standard, or level.

If you are good at something, you are skilful and successful at doing it.

If you describe a piece of news, an action, or an effect as good, you mean that it is likely to result in benefit or success.

A good idea, reason, method, or decision is a sensible or valid one.

If you say that it is good that something should happen or good to do something, you mean it is desirable, acceptable, or right.

A good estimate or indication of something is an accurate one.

If you get a good deal or a good price when you buy or sell something, you receive a lot in exchange for what you give.

If something is good for a person or organization, it benefits them.

If something is done for the good of a person or organization, it is done in order to benefit them.

If someone or something is no good or is not any good, they are not satisfactory or are of a low standard.

If you say that doing something is no good or does not do any good, you mean that doing it is not of any use or will not bring any success.

Good is what is considered to be right according to moral standards or religious beliefs.

Someone who is good is morally correct in their attitudes and behaviour.

Someone, especially a child, who is good obeys rules and instructions and behaves in a socially correct way.

Someone who is good is kind and thoughtful.

Someone who is in a good mood is cheerful and pleasant to be with.

If people are good friends, they get on well together and are very close.

A person's good eye, arm, or leg is the one that is healthy and strong, if the other one is injured or weak.

You use good to emphasize the great extent or degree of something.

You say 'Good' or 'Very good' to express pleasure, satisfaction, or agreement with something that has been said or done, especially when you are in a position of authority.

'As good as' can be used to mean 'almost.'

If you do something for the common good, you do it for the benefit or advantage of everyone.

If you say that something will do someone good, you mean that it will benefit them or improve them.

If something changes or disappears for good, it never changes back or comes back as it was before.

People say 'Good for you' to express approval of your actions.

If someone is good for something, you can rely on them to provide that thing.

If you say it's a good thing, or in British English it's a good job ,that something is the case, you mean that it is fortunate.

If you make good some damage, a loss, or a debt, you try to repair the damage, replace what has been lost, or repay the debt.

If someone makes good a threat or promise or makes good on it, they do what they have threatened or promised to do.

If someone makes good, they become successful, famous, or rich.

If you say that something or someone is as good as new, you mean that they are in a very good condition or state, especially after they have been damaged or ill.

You use good old before the name of a person, place, or thing when you are referring to them in an affectionate way.

If you say that someone is living the good life, you mean that they are living in comfort and luxury with few problems or worries.