1. "And" (conjunction): This is the most common meaning of "na". It's used to connect words, phrases, or clauses.
Examples:
* Mimi na wewe: Me and you.
* Nimekula chakula na nimekunywa maji: I ate food and drank water.
* Alikwenda dukani na akanunua mkate: He went to the shop and bought bread.
2. "With" (preposition): "Na" can also be used to indicate something is done or happens with someone or something else.
Examples:
* Alizungumza na mwalimu: He spoke with the teacher.
* Alitoka na rafiki yake: He left with his friend.
* Nilisafiri na ndege: I traveled by plane.
3. "To have" (verb): In some cases, "na" can be used to indicate possession. However, it's usually used in a more informal or colloquial way.
Example:
* Nina pesa: I have money. (More formal: "Nimepata pesa")
It's important to consider the context to determine the correct meaning of "na". If you're unsure, it's always best to ask a Swahili speaker for clarification.