Good is a common adjective, meaning pleasing, favorable, or nice. It is also a noun, referring to things that are valuable or desirable:

People often use good as an interjection: I feel pretty good about this situation. It’s a very good idea to be careful when driving on mountain roads. Good food is prepared and presented in a pleasant setting. A good job pays well and offers benefits. A good education is important for a successful career.

A person who is good behaves in a morally correct way, obeys rules and instructions, and treats others fairly. A teacher is a good example of someone who treats students well. Good is a concept that can be applied to almost any human activity or experience.

An article is considered good if it meets Wikipedia’s core editorial standards, passes through the Good Article nomination process and meets all six criteria. It is well-written, contains factually accurate and verifiable information, is broad in scope, neutral in point of view, stable in content, and illustrated, where possible, by relevant images with suitable copyright licenses. It also follows the guidelines for the featured article process and contains no major omissions or inaccuracies.

In many languages, the verb to be good means to be morally right or ethical: The man who was trying to help was doing a good thing.

Throughout history, people have used the term good to refer to a variety of different ideas and values:

A good day is one when everything goes your way: I had a very good day today.

Good is also an adverb, occurring after linking verbs like taste, smell, look, and feel: The biscuits smell good. The weather was good. I felt good after that long walk. It may also connote spirits, as in I feel good in spite of the bad news. In formal speech or edited writing, however, the adverb well is generally preferred: He did well on the test. She sees well with her new glasses.

The term good is also a concept of value, particularly in economics and commerce: A good is something that provides satisfaction or utility to consumers, thus influencing its demand. In contrast, a bad is something that produces dissatisfaction or pain. Goods are also limited in quantity relative to demand, which creates the need for prices and other mechanisms to ration their use. For this reason, some economists consider goods to be scarce resources.