Sistemul este nou.

The system is new.

Breakdown of Sistemul este nou.

• a fi: to be
• nou: new
• sistemul: the system

Questions & Answers about Sistemul este nou.

Why is it sistemul and not sistem?

Because -ul is the definite article attached to the end of the noun in Romanian.

• sistem = system / a system
• sistemul = the system

Unlike English, Romanian usually puts the definite article at the end of the noun instead of using a separate word like the.

What part of the sentence means is?

The word este means is.

It is a form of the verb a fi = to be.

So in this sentence:

• Sistemul = the system
• este = is
• nou = new

Can Romanian leave out este the way some languages do?

Normally, in a simple present-tense sentence like this, este is usually included.

So Sistemul este nou is the standard full sentence for The system is new.

In very informal contexts, people may sometimes drop parts that are understood, but for learners, you should use este here.