Learn Hardcore Romanian: Unde este biroul tău?

ești is 2nd person singular (“you are”)
sunteți is 2nd person plural/formal (“you are” polite)
Using ești or sunteți would mean you’re asking “Are you …?” rather than “Where is …?”

Why is biroul written with -ul at the end?

Romanian enclitic definite articles attach to the end of nouns.

birou = office
biroul = the office
In English we say the office, but in Romanian the -ul signals the.

Why does the possessive tău come after the noun instead of before?

In Romanian, possessive pronouns typically follow the noun they modify.

English: your office
Romanian: biroul tău (literally “the office your”)

What’s the difference between birou and oficiu?

birou is the everyday word for an office as a workspace or department.
oficiu is more formal and usually refers to an official institution or agency (e.g., oficiul poștal = the post office).
When asking where someone works, you almost always use birou.

How would you ask Where is your office? formally?

Use the formal possessive dumneavoastră: Unde este biroul dumneavoastră?
Here dumneavoastră is the polite 2nd person singular/plural possessive.

Can I say Unde este biroul tău? to a woman?

Yes. The form tău agrees with the gender of the noun (birou is masculine), not the gender of the person.
For a feminine noun like mașina (car), you’d use ta: Unde este mașina ta?

How do you pronounce Unde este biroul tău??

Approximate pronunciation:

Unde = OON-deh
este = EH-steh
biroul = bee-ROUL (the ou sounds like ow in cow)
tău = tuh-OO (the ă is like the a in sofa)
Altogether: /ˈunde ˈeste biˈroul təˈu/