Here are some other ways to say welcome in Swahili, depending on the context:
* Karibu sana - "Very welcome" (more formal)
* Karibu nyumbani - "Welcome home"
* Karibu kwenye - "Welcome to" (followed by the place, e.g., "Karibu kwenye sherehe" - Welcome to the party)
You can also say "Welcome" in Swahili using "Hongera kwa kuja" which means "Congratulations for coming". This is a more formal way to express welcome.