Karibu Nyumbani.
nikaribishe
karibu karibu
Karibu
Karibu tena
Karibu nyumbani kwetu.N.B. -- In Swahili can also be an invitation: please come to our house.
"karibuni wote" or "karibuni nyote"
The phrase in Swahili is 'karibu beech darasa mkutano'. Swahili is the primary language of Kenya, Uganda, Rwanda, and Burundi.
Welcome home
welcome home
karibu
You wouldn't say "welcome to your school" but "welcome to our school." Karibu shuleni kwetu. Or, to more than one person, karibuni shuleni kwetu.