Dobrodošel (you say it to 1 man), dobrodošla (to 1 woman), dobrodošla (2 men or 1 man and 1 woman), dobrodošli (2 women), dobrodošli (3 or more people, at least one of them is a man), dobrodošle (3 or more women, no man) ... complicated ;)
generally it's translated as "Dobrodošli!"
If the addressee is one person: Vitaj doma
If there are more people: Vitajte doma
Vitajte v Anglicku
welcome = "vítejte"
Vitajte v Amerike
vitejte
Vítejte v Anglii.
vítej
For in Czech is "pro"
you say welcome aboard I don't know why but that seems to be the case
In Konkani, you say "svoagat" to welcome someone.
How do you say you’re welcome in Apache
"Thank you" in Czech is "Děkuji."
To say "welcome" in Tlingit, you can say "Yak'Êi."
In Berber, you can say "Tanmirt" to say "you are welcome."
Zitra means tomorrow in Czech language.
To say "you are welcome" in Kurdish, you can say "khosh amadi."
To say "welcome" in Choctaw, you would say "yakoke."