A többi zsák tele van.

Többi means the rest, the remaining, or the other ones within a group already understood from context.

So a többi zsák means the rest of the bags or the other bags.

A is the definite article, like the in English.

Hungarian normally says a többi for the rest / the others. It shows that we are talking about a specific remaining set, not just bags in general.

After words like sok (many), kevés (few), néhány (some/a few), and also a többi (the rest), Hungarian usually keeps the noun in the singular form.

So:

• a többi zsák = literally something like the rest bag
• but naturally in English = the rest of the bags / the other bags

This is a very common Hungarian pattern.

Because a többi zsák behaves like a quantified expression, and in standard Hungarian that kind of subject usually takes a singular verb.

So Hungarian says:

• A többi zsák tele van.

Even though English translates it as plural:

• The other bags are full.

If you had a normal plural subject without többi, you would use the plural verb:

• A zsákok tele vannak. = The bags are full.

Because tele is normally used in the fixed predicative expression tele van = is full.

This is different from many ordinary adjectives in Hungarian. For example:

• A zsák nehéz. = The sack is heavy.
  No van in 3rd person singular present.

But:

• A zsák tele van. = The sack is full.

So tele van is something you should learn as a unit.

It can definitely stand alone, as it does here.

If the context already makes it clear, tele van simply means is full.

If you want to say what something is full of, Hungarian usually uses -val / -vel:

• A zsák homokkal van tele. = The sack is full of sand.
• A többi zsák liszttel van tele. = The other bags are full of flour.

Usually yes. Tele and teli both mean full, and many speakers use them very similarly.

So you may hear both:

• tele van
• teli van

For a learner, tele van is a very common and safe pattern to use.

No, Hungarian word order is flexible, but changing it changes the emphasis.

The neutral version is:

• A többi zsák tele van.

If you move things around, you create focus or contrast. For example:

• Tele van a többi zsák.
  This puts more emphasis on being full.

• A többi zsák van tele.
  This strongly contrasts the other bags with something else, like These bags are not full; the other bags are.

So the original sentence is the most neutral, straightforward order.

zs is pronounced like the s in measure or vision: zh /ʒ/.

So zsák sounds approximately like zhaak in English-style spelling, though the Hungarian á is a long vowel.

That means the sentence begins with two zs sounds close together:

• többi zsák