Formal:
* Dobrodošli kući! (pronounced: dob-ro-do-shli koo-chee) - This is the most formal way to say "welcome home" and is appropriate for addressing someone you don't know well or someone you're showing respect to.
Informal:
* Dobro došli kući! (pronounced: dob-ro do-shli koo-chee) - This is a slightly less formal version of the previous phrase.
* Dobro došao kući! (pronounced: dob-ro do-shao koo-chee) - This is the masculine singular form of "welcome home" and is appropriate for welcoming a male friend or family member.
* Dobro došla kući! (pronounced: dob-ro do-shla koo-chee) - This is the feminine singular form of "welcome home" and is appropriate for welcoming a female friend or family member.
* Dobro došli! (pronounced: dob-ro do-shli) - This is a shorter and more informal way to say "welcome" in general, and can be used to welcome someone home.
* Dobro došao! (pronounced: dob-ro do-shao) - The masculine singular form of "welcome".
* Dobro došla! (pronounced: dob-ro do-shla) - The feminine singular form of "welcome".
In addition to these phrases, you can also use the following:
* Sretan povratak kući! (pronounced: sretan po-vrat-ak koo-chee) - This translates to "happy return home".
* Lijepo je što si kući! (pronounced: lee-ye-po ye shto si koo-chee) - This translates to "it's nice that you're home".
The best way to choose the right phrase is to consider your relationship with the person you are greeting and the level of formality you want to convey.