A la festa, les meves filles volen ballar i riure amb les amigues.

Yes. In A la festa, the preposition a means at or to, depending on context. Here it means at the party.

• a = at / to
• la festa = the party

So A la festa means At the party.

Catalan often puts a time or place phrase at the beginning of the sentence for context, just like English can do:

• At the party, my daughters want to dance...

Because festa is a specific noun here, so it takes the definite article la.

• a + la festa = at the party

Catalan uses articles very naturally, often more than English does. In this sentence, the idea is not just at party in a general sense, but at the party.

In Catalan, possessives are very often used together with a definite article.

So:

• les meves filles = my daughters
• literally: the my daughters

This is normal Catalan grammar. English does not use the before my, but Catalan usually does:

• el meu germà = my brother
• la meva mare = my mother
• les meves filles = my daughters

They all agree in gender and number.

• les = feminine plural the
• meves = feminine plural my
• filles = daughters, feminine plural

This agreement is very important in Catalan. Since filles is feminine plural, the article and possessive must also be feminine plural:

• singular masculine: el meu fill = my son
• singular feminine: la meva filla = my daughter
• plural masculine: els meus fills = my sons / my children
• plural feminine: les meves filles = my daughters

Because Catalan often drops subject pronouns when they are not needed.

• volen already tells you the subject is they
• so les meves filles volen means my daughters want

You could say elles volen, but it is usually unnecessary unless you want emphasis or contrast.

This is common in Catalan:

• Parlo = I speak
• Parles = you speak
• Parlen = they speak

The verb ending often makes the subject clear.

Volen is the 3rd person plural present tense of voler, which means to want.

Here is the present tense of voler:

• vull = I want
• vols = you want
• vol = he/she/it wants
• volem = we want
• voleu = you all want
• volen = they want

So:

• les meves filles volen = my daughters want

Because after voler (to want), Catalan normally uses another verb in the infinitive.

So:

• volen ballar = want to dance
• volen riure = want to laugh

This works much like English:

• They want to dance
• They want to laugh

Catalan often does not need a separate word exactly like English to before the second verb in the same way English does; the structure is simply:

• voler + infinitive

I means and in Catalan.

So:

• ballar i riure = to dance and laugh

It joins the two infinitives. This is completely parallel to English.

One pronunciation note: i is normally pronounced like ee in see.

Amb means with, so:

• amb = with
• les amigues = the female friends

So:

• amb les amigues = with their female friends / with the friends

Depending on context, English may translate this more naturally as with their friends, but the Catalan word amigues specifically shows the group is feminine.

Catalan often uses the definite article where English may not.

So amb les amigues is very natural Catalan. In English, we might say:

• with their friends
• with friends
• with the friends

Catalan prefers the article here:

• amb les amigues

This can sound more definite than English, but it is standard usage.

Yes. Amigues is the feminine plural form.

• amic = male friend
• amiga = female friend
• amics = male friends, or a mixed-gender group
• amigues = female friends

So les amigues tells you the friends are female.

The comma separates the opening context phrase from the rest of the sentence.

• A la festa, ... = At the party, ...

This is similar to English punctuation when a sentence begins with a place or time expression. The comma helps readability, though in some short sentences punctuation can vary a little.

The basic structure is:

• A la festa = place expression
• les meves filles = subject
• volen = main verb
• ballar i riure = infinitives depending on volen
• amb les amigues = prepositional phrase

So the pattern is roughly:

Place + Subject + Verb + Infinitives + Prepositional phrase

Catalan word order is often similar to English, though it can be flexible:

• Les meves filles volen ballar i riure amb les amigues a la festa would also be understandable, but the original sentence puts the setting first for emphasis.

Riure means to laugh, and learners often notice it because its spelling looks unusual.

A rough pronunciation guide is:

• riure ≈ REE-oo-reh or RYOO-reh, depending on accent and how simplified the explanation is

The important thing is that it is a normal infinitive ending in -re, unlike very regular -ar verbs such as ballar.

You do not need to master all its forms immediately, but it is useful to recognize:

• riure = to laugh

No. Volen means want, not are going to.

So the sentence specifically expresses desire or intention:

• les meves filles volen ballar i riure = my daughters want to dance and laugh

If you wanted are going to dance, Catalan would use a different structure, such as a future or a periphrastic form depending on context.