Casa are un teren mare.

Casă means a house, while casa means the house.

Romanian usually adds the definite article to the end of the noun instead of putting a separate word before it. So:

• casă = a house
• casa = the house

That is why the sentence starts with Casa.

Because that is how Romanian normally works. Unlike English, Romanian usually does not have a separate word like the in front of the noun. Instead, the definite article is attached to the end.

Examples:

• băiat = a boy
• băiatul = the boy
• fată = a girl
• fata = the girl
• casă = a house
• casa = the house

So casa is the normal Romanian way to say the house.

Are is the 3rd person singular present tense of the verb a avea, which means to have.

A few forms are:

• eu am = I have
• tu ai = you have
• el/ea are = he/she/it has

So Casa are... literally means The house has...

Because teren is a neuter noun in Romanian.

In Romanian, neuter nouns behave:

• like masculine in the singular
• like feminine in the plural

So in the singular, they take un, not o:

• un teren = a plot/piece of land

And in the plural:

• două terenuri = two plots

So un teren is correct.

Teren usually means a piece of land, a plot, grounds, or lot.

In this sentence, it means that the house has a large area of land with it. Depending on context, English might translate it as:

• a plot
• land
• a yard
• grounds

A useful comparison:

• teren = land/plot/grounds
• curte = yard/courtyard

So if you specifically wanted yard, Romanian might also use curte:

• Casa are o curte mare = The house has a big yard

Because Romanian adjectives usually come after the noun.

So:

• teren mare = large plot
• casă mare = big house
• copil mic = small child

This is different from English, where adjectives usually come before the noun.

Romanian can sometimes put an adjective before the noun for emphasis or style, but teren mare is the normal, neutral order.

Because mare is the singular form, while mari is the plural form.

Examples:

• un teren mare = a large plot
• o casă mare = a big house
• terenuri mari = large plots
• case mari = big houses

So in your sentence, teren is singular, so the adjective must also be singular: mare.

Yes. Romanian adjectives agree with the noun in number and often in gender.

With mare, the singular form is the same for masculine, feminine, and neuter singular:

• un teren mare
• o casă mare

But the plural changes to mari:

• terenuri mari
• case mari

So there is agreement, even though the singular form happens to look the same across genders.

Normally, no.

A singular countable noun in Romanian usually needs an article or another determiner, just as in English. So Casa are un teren mare is the normal form.

Without un, it sounds incomplete in ordinary standard Romanian.

The sentence Casa are un teren mare is the most natural and neutral order.

Romanian word order is somewhat flexible, but changing it usually adds emphasis or makes the sentence sound marked or literary.

For example:

• Casa are un teren mare = neutral
• Un teren mare are casa = unusual, strongly emphasized

So for everyday Romanian, the given order is the one to learn first.

It can mean either, depending on context.

Literally, casă means house, but Romanian sometimes uses it in places where English might say home.

In this sentence, because it is talking about having a large piece of land, the physical meaning the house is the most likely one.