* Adjective: Describing a person, thing, or concept as intelligent, clever, or skillful.
* Example: "She's a very smart woman."
* Adverb: Describing a verb, adjective, or other adverb, meaning intelligently, cleverly, or skillfully.
* Example: "He answered the question smartly."
* Noun: A slang term for a stylish or fashionable person.
* Example: "She's a real smart."
It's important to look at the context of the sentence to determine the correct part of speech.