You may say 'konnichiwa'.
Konnichiwa
To say "welcome home" in Hawaiian, you can say "kāhea mai" or "nau mai."
"Haere mai ki te hokinga mai" is how you say welcome back in Maori.
"Afio mai i matagofie"; "Afio mai i manaia"; "Afio mai i matalasi".
You say it exactly the same, but spell it as 'Mai'
who you are.
mai pen rai or mai mee pan ha
mai
Japanese
Jur gan mai. or Pop gan mai.
In Thai, you can say "สบายดีไหม (Sabai dee mai)" to ask someone how they are.