The Indefinite Article "un"
Like English, Romanian places the indefinite article ("a" or "an") before the noun. For masculine and neuter nouns, use un.
Notice how this contrasts with the definite article ("the"), which attaches to the end of the noun as a suffix rather than standing alone.
Yes, No, and Not
Use da (yes) and nu (no) to answer questions.
In Romanian, nu does double duty because it also means "not." To make a sentence negative, simply place nu right before the verb.
The Indefinite Article "o"
For feminine nouns, use the indefinite article o.
When a feminine noun follows an indefinite article, it stays in its base dictionary form (which usually ends in -ă or -e). Remember that to say "the", that base ending changes to -a.
Compare o cameră (a room) with camera (the room), and o ușă (a door) with ușa (the door):
Putting It Together
You can easily mix indefinite and definite articles in the same sentence to describe your surroundings. And remember, to say "No, it is not," you just use nu twice!