1. Stylish and well-dressed: This is the most common meaning of "natty". It implies a person who is always impeccably dressed, with a keen sense of style. For example: "He always looked natty in his suits."
2. Neat and tidy: This meaning is less common but still used. It describes something that is clean and in good order, often referring to physical appearance. For example: "She kept her house natty and clean."
3. Short for "Nathaniel": This meaning is very uncommon and only used in informal contexts.
So, to understand the meaning of "natty", consider the context of the sentence. If it's describing a person's clothing, it likely means "stylish". If it's describing a place or object, it likely means "neat and tidy".