Pisica gri doarme aici.

Because -a at the end is the definite article in Romanian.
So:

• pisică = a cat
• pisica = the cat

Unlike English, Romanian usually attaches the to the end of the noun instead of putting it before the noun.

In Romanian, adjectives often come after the noun.

So:

• pisica gri = the gray cat

This is the normal order. Romanian can sometimes place an adjective before the noun for emphasis or style, but after the noun is the basic pattern learners should expect.

No, gri usually stays the same. It is one of those adjectives that is commonly invariable in everyday use.

So you can often see:

• pisică gri
• pisica gri

without changing gri.

This is useful because many Romanian adjectives do change for gender and number, but gri is much simpler.

Aici is an adverb of place. It means here.

It tells you where the action happens:

• doarme aici = is sleeping here / sleeps here

Doarme is present tense, 3rd person singular, from the verb a dormi = to sleep.

So:

• eu dorm = I sleep
• tu dormi = you sleep
• el/ea doarme = he/she sleeps

In this sentence, doarme matches pisica because pisica is singular.

Romanian often uses the simple present tense where English might use either:

• sleeps
• is sleeping

So Pisica gri doarme aici can mean:

• The gray cat sleeps here
• The gray cat is sleeping here

The exact meaning depends on context. Romanian does not need a separate helping verb like English is here.

The basic noun pisică is a feminine noun in Romanian. One clue is that many feminine nouns end in -ă in the indefinite form.

Also, the definite singular ending -a is typical for many feminine nouns:

• pisică = a cat
• pisica = the cat

Yes, Romanian word order is fairly flexible, but Pisica gri doarme aici is the most neutral and natural order.

You may also hear things like:

• Aici doarme pisica gri. = The gray cat sleeps here / Here is where the gray cat sleeps.

Changing the order usually changes emphasis, not the core meaning.

A simple learner-friendly pronunciation guide is:

pee-SEE-ka gree DO-ar-me a-EECH

A few useful notes:

• ci in pisica sounds like chee at the end
• gri sounds close to English gree
• doarme has two vowel sounds together: do-ar-
• aici is roughly a-yeech or a-eech, depending on accent and speed

No. Romanian usually does not need a subject pronoun if the subject is already clear.

So you simply say:

• Pisica gri doarme aici.

You would only add a pronoun like ea if you wanted special emphasis or contrast.

In everyday Romanian, pisică commonly means cat in general, just as in this sentence.

In some contexts, it can refer specifically to a female cat, but very often it is simply the normal everyday word learners will encounter for cat.

So in this sentence, the natural translation is just The gray cat sleeps here.

It follows a very common Romanian pattern:

noun + adjective + verb + adverb

So here:

• Pisica = the cat
• gri = gray
• doarme = sleeps / is sleeping
• aici = here

This makes it a very useful beginner sentence because it shows several core Romanian patterns at once.