Good
Part of speech: adverb
Definition: Well; satisfactorily or thoroughly.
Part of speech: noun
Definition: The forces or behaviors that are the enemy of evil. Usually consists of helping others and general benevolence. A result that is positive in the view of the speaker. The abstract instantiation of something qualified by the adjective; e.g., "The best is the enemy of the good." An item of merchandise.
Part of speech: adjective
Definition: Acting in the interest of good; ethical. Useful for a particular purpose; functional. Of food, edible; not stale or rotten. Of food, having a particularly pleasant taste. Of food, being satisfying; meeting dietary requirements. Of food, healthful; containing vitamins and minerals. Pleasant; enjoyable. Of people, competent or talented. Effective. Favourable. Beneficial; worthwhile. With "and", extremely. Holy. Reasonable in amount. Large in amount or size. Entire.
Example sentence: A true friend is someone who thinks that you are a good egg even though he knows that you are slightly cracked.
Nice
Part of speech: adjective
Definition: Of a thing or person or event, pleasant, pretty.Admirable, enviable.Innocent; gentle; distinguished by perceived class or virtue.Showing or requiring great precision or sensitive discernment; subtle.Neat; elegantly succinct.Bordering on failure or disaster; succeeding by the narrowest of margins.With "and", excellent, pleasantly.
Part of speech: interjection
Definition: Used to signify a job well done.
Example sentence: The hardest thing about being famous is that people are always nice to you. You're in a conversation and everybody's agreeing with what you're saying - even if you say something totally crazy. You need people who can tell you what you don't want to hear.