Ο σκύλος της είναι λίγο χοντρός, αλλά πολύ χαριτωμένος.

της means her in this sentence.

Greek often expresses possession with:

• the noun first
• then a weak possessive form like μου, σου, του, της, μας, σας, τους

So:

• ο σκύλος της = her dog
• literally, something like the dog of her

This is the normal and very common way to say possession in everyday Greek.

A few related forms are:

• ο σκύλος μου = my dog
• ο σκύλος σου = your dog
• ο σκύλος του = his dog
• ο σκύλος της = her dog

Ο is the masculine singular nominative form of the definite article, meaning the.

Greek uses definite articles much more regularly than English does. Since σκύλος is:

• masculine
• singular
• the subject of the sentence

the correct article is ο.

So:

• ο σκύλος = the dog

The basic nominative singular articles are:

• ο for masculine
• η for feminine
• το for neuter

σκύλος is the nominative singular masculine form, because it is the subject of the verb είναι.

In this sentence, the dog is the thing being described, so Greek uses the subject form.

You can think of it like this:

• ο σκύλος = the dog, as subject
• if the word had another role in the sentence, its ending might change

For example, in other contexts Greek nouns change form depending on case.

Because they are adjectives describing σκύλος, and Greek adjectives must agree with the noun they describe in:

• gender
• number
• case

Since σκύλος is:

• masculine
• singular
• nominative

the adjectives also appear in the masculine singular nominative form:

• χοντρός
• χαριτωμένος

If the noun were feminine, you would need feminine forms. For example:

• Η γάτα της είναι λίγο χοντρή, αλλά πολύ χαριτωμένη. Her cat is a little fat, but very cute.

So the adjective endings change to match the noun.

Here, λίγο and πολύ are being used as adverbs, not adjectives.

They modify the adjectives:

• λίγο χοντρός = a little fat / a bit chubby
• πολύ χαριτωμένος = very cute

Because they are adverbs here, they do not have to agree with σκύλος.

Compare:

• λίγο χοντρός = a little fat
• πολύ χαριτωμένος = very cute

But as adjectives, these words can change form in other contexts. For example:

• πολύς κόσμος = a lot of people

So in your sentence, they stay as λίγο and πολύ because they are functioning adverbially.

They show degree.

• λίγο = a little, a bit
• πολύ = very, a lot

So the sentence softens the first description and strengthens the second one:

• λίγο χοντρός = only somewhat fat / a bit chubby
• πολύ χαριτωμένος = very cute

This creates a natural contrast:

• one mildly negative trait
• one strongly positive trait

Yes. αλλά means but and is the standard, neutral word for contrast.

So:

• λίγο χοντρός, αλλά πολύ χαριτωμένος = a little fat, but very cute

In casual Greek, you may also hear μα for but, but αλλά is the safest standard choice and works in all kinds of contexts.

Because Greek, like English, can use one is for two linked descriptions.

So:

• Ο σκύλος της είναι λίγο χοντρός, αλλά πολύ χαριτωμένος.

means:

• Her dog is a little fat, but very cute.

You could repeat είναι, but it is not necessary:

• Ο σκύλος της είναι λίγο χοντρός, αλλά είναι πολύ χαριτωμένος.

This is grammatical, but slightly less compact. The version with one είναι sounds very natural.

Yes, χοντρός can mean fat, chubby, or overweight, depending on context.

When used for a person, it can definitely sound rude or blunt. For animals, it is often softer and can sound more like chubby.

So in this sentence, about a dog, it is quite natural. The word λίγο also softens it:

• λίγο χοντρός = a little chubby / a bit fat

So the overall tone is not especially harsh.

χαριτωμένος usually means cute, adorable, or charming.

It comes from χαριτωμένος / χαριτωμένη / χαριτωμένο, an adjective that often describes someone or something as pleasantly attractive in a sweet way.

For a dog, πολύ χαριτωμένος is very natural and warm:

• very cute
• very adorable

So it is stronger and more affectionate than just saying something neutral like nice.

Yes, Greek word order is more flexible than English word order, though not completely free.

The neutral order here is:

• Ο σκύλος της είναι λίγο χοντρός, αλλά πολύ χαριτωμένος.

That sounds perfectly natural.

You could change the order for emphasis, for example:

• Λίγο χοντρός είναι ο σκύλος της, αλλά πολύ χαριτωμένος.

This puts more focus on λίγο χοντρός.

Still, for learners, the original version is the best model because it is clear and standard.

A simple pronunciation guide would be:

• Ο σκύλος της είναι λίγο χοντρός, αλλά πολύ χαριτωμένος.
• o SKEE-los tis EE-ne LEE-go hon-DROS, a-LA po-LEE ha-ri-to-ME-nos

A few notes:

• σκύλος has the stress on the first syllable: ΣΚΥ-
• είναι is pronounced roughly EE-ne
• χ in χοντρός and χαριτωμένος is like the h sound in huge for many English speakers, but rougher
• αλλά has stress on the second syllable
• χαριτωμένος has stress on -μέ-

You would change the noun and the adjective forms to feminine.

For example:

• Η σκύλα της είναι λίγο χοντρή, αλλά πολύ χαριτωμένη.

Changes:

• Ο → Η
• σκύλος → σκύλα
• χοντρός → χοντρή
• χαριτωμένος → χαριτωμένη

This shows again how Greek adjectives must agree with the noun they describe.

Yes. το σκυλί της is also very common and often sounds slightly more everyday or affectionate.

Both can mean her dog:

• ο σκύλος της
• το σκυλί της

The main difference is grammatical gender of the noun:

• σκύλος is masculine
• σκυλί is neuter

So the adjectives would also change to match:

• Ο σκύλος της είναι λίγο χοντρός, αλλά πολύ χαριτωμένος.
• Το σκυλί της είναι λίγο χοντρό, αλλά πολύ χαριτωμένο.

Both are correct; they just use different noun forms.