Questions & Answers about Vaša kosa je smeđa.
Why do both vaša and smeđa end in -a?
They are both describing the noun kosa (hair). In Croatian, adjectives and possessive words must match the gender of the noun they describe. Because kosa is a feminine noun in the singular, both the possessive "your" (vaš) and the adjective "brown" (smeđ) take the feminine singular ending -a.
Does Croatian treat kosa as a singular or plural word?
Just like in English, the word kosa (referring to the hair on a person's head) is treated as a singular noun. That is why the sentence uses je (is) instead of the plural su (are).
If I am talking to a friend, would I still use vaša?
Probably not. Vaša is used when you are talking to multiple people, or formally to one person you want to show respect to (like a boss or a stranger). If you are talking to one friend, you would use the informal "your", which is tvoja here to match the feminine noun kosa.