La gatta bianca ha i baffi lunghi.

Gatta is the feminine form of gatto (cat).

• il gatto = the male cat / the cat
• la gatta = the female cat

So this sentence is specifically talking about a female cat.

Because both la and bianca must match gatta, which is feminine singular.

• la = feminine singular the
• bianca = feminine singular form of white

Italian adjectives usually agree with the noun in gender and number:

• gatto bianco = white male cat
• gatta bianca = white female cat
• gatti bianchi = white male/mixed cats
• gatte bianche = white female cats

Ha means has. It is the he/she/it form of the verb avere (to have).

So:

• io ho = I have
• tu hai = you have
• lui/lei ha = he/she has

In this sentence, ha refers to la gatta.

Italian often uses the definite article where English might not.

So i baffi literally means the whiskers or the mustache, but in natural English we may translate it simply as whiskers depending on context.

With body parts and things closely connected to someone or something, Italian commonly uses the article:

• ha i baffi = has whiskers / has a mustache
• ha gli occhi verdi = has green eyes
• ha le mani fredde = has cold hands

Yes, in the case of an animal, baffi means whiskers.

But with people, i baffi usually means mustache or moustache. So the word can refer to both, depending on context.

Here, because the subject is a cat, i baffi clearly means whiskers.

In Italian, baffi is normally plural.

That is true whether it means:

• whiskers
• mustache

So Italians usually say:

• ha i baffi = has whiskers / has a mustache

Even when English might use a singular word like mustache, Italian still often uses the plural form.

Lunghi matches baffi, not gatta.

Since baffi is masculine plural, the adjective must also be masculine plural:

• lungo = masculine singular
• lunga = feminine singular
• lunghi = masculine plural
• lunghe = feminine plural

So:

• i baffi lunghi = the long whiskers

Even though gatta is feminine, lunghi describes baffi, not the cat.

In Italian, adjectives often come after the noun.

So:

• gatta bianca = white cat
• baffi lunghi = long whiskers

Some adjectives can come before the noun, but in simple descriptive sentences like this, putting them after the noun is very normal and natural.

You can, but it sounds more literary, poetic, or stylistically marked.

The normal everyday order is:

• la gatta bianca

Putting bianca before the noun gives it a different tone, often more expressive or elegant. For a learner, la gatta bianca is the safest and most natural choice.

Mostly yes. The basic structure is:

• La gatta bianca = subject
• ha = verb
• i baffi lunghi = object + description

So it follows a straightforward pattern similar to English:

The white cat has long whiskers.

That makes this a very useful beginner sentence.

Normally, no.

Italian uses articles much more regularly than English does. So in a sentence like this, you should keep them:

• La gatta bianca ha i baffi lunghi.

Leaving them out would sound unnatural or incorrect in standard Italian.

A helpful rough guide is:

• gatta ≈ GAHT-tah
• baffi ≈ BAHF-fee

A couple of useful points:

• In gatta, the double tt is pronounced more strongly than a single t.
• In baffi, the double ff is also held a little longer.

Double consonants matter in Italian, so it is good to notice them early.

Not in normal context. Since the subject is a cat, i baffi is understood as whiskers.

Grammatically, the word baffi can mean either whiskers or mustache, but context makes the meaning clear here.