What's the Difference between "Good" and "Well"?

When Should You Use Each?

Good

"Good" is an adjective. This means it describes people, things and places, not verbs.

"She is a good student."

These sentences are correct:

"Sam is a good boy."
"They live in a good house."
"This is not a good place live in."

These sentences are incorrect:

"Sam behaves good."
"They eat good."
"She sings really good."

Well

"Well" is usually an adverb. It describes actions.

"She dances well."

These sentences are correct:

"Sam behaves well."
"They eat well."
"She sings really well."

Note: when "well" is used as an adjective it means "healthy."

For example: "You don't look so well."

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