It's a common greeting used in various contexts, such as:
* Welcoming someone to a place: "Karibu nyumbani" (Welcome home) or "Karibu ofisini" (Welcome to the office).
* Acknowledging someone's arrival: "Unakaribishwa sana" (You are very welcome).
* Expressing gratitude for someone's presence: "Asante kwa kuja, unakaribishwa sana" (Thank you for coming, you are very welcome).
"Unakaribishwa" is a warm and friendly expression that conveys hospitality and appreciation.