Pour le réveillon de Noël, ma tante prépare une dinde et un dessert léger.

It means for Christmas Eve dinner / for the Christmas Eve celebration.

A key point is that réveillon de Noël is not just the calendar day Christmas Eve. It usually refers to the festive evening meal or celebration associated with Christmas Eve.

So:

• Pour = for
• le réveillon de Noël = the Christmas Eve feast/celebration

Together, the phrase sets the occasion: For Christmas Eve, ...

French usually uses an article where English might not.

Here, le réveillon de Noël means the Christmas Eve celebration, treated as a specific event. So le is natural.

Also, pour + le does not contract in French.

For example:

• pour le dîner
• pour le week-end
• pour le réveillon

By contrast, only certain combinations contract, such as:

• à + le = au
• de + le = du

But pour le stays pour le.

Yes, it is a common cultural word in French.

Un réveillon is a festive late-evening meal, especially for:

• Christmas Eve → le réveillon de Noël
• New Year’s Eve → le réveillon du Nouvel An or simply le réveillon

So in this sentence, it refers to the special Christmas Eve meal or celebration, not just waking up or getting up, even though the word is historically related to staying awake late.

Because tante is a feminine singular noun, and the possessive adjective agrees with the noun possessed, not with the owner.

So:

• ma tante = my aunt
• mon oncle = my uncle

This is different from English, where my never changes.

A useful reminder:

• mon = masculine singular
• ma = feminine singular
• mes = plural

So ma tante is correct because tante is feminine singular.

Prépare is the present tense of préparer in the third-person singular.

The subject is ma tante, so the verb form is:

• je prépare
• tu prépares
• il/elle/on prépare

In this sentence, ma tante prépare means my aunt prepares / is preparing.

Depending on context, the French present tense can mean:

• a habitual action: My aunt prepares...
• something happening now: My aunt is preparing...
• sometimes even a planned future event: My aunt is making... for Christmas Eve

French uses the present tense more flexibly than English does.

Because French generally requires an article before singular countable nouns.

Here:

• une dinde = a turkey
• un dessert léger = a light dessert

English can sometimes drop articles more easily, but French usually cannot.

Also notice the gender:

• dinde is feminine → une
• dessert is masculine → un

So the articles are showing both number and gender.

In French, many adjectives come after the noun.

So:

• un dessert léger
• une soupe chaude
• un repas copieux

That is the normal position for many descriptive adjectives, especially ones describing qualities like taste, weight, or intensity.

Some adjectives often come before the noun, but léger is very commonly placed after it here.

So un dessert léger is the natural word order.

Because léger has to agree with dessert, and dessert is masculine singular.

So:

• un dessert léger = masculine singular
• une salade légère = feminine singular
• des desserts légers = masculine plural
• des salades légères = feminine plural

The adjective changes form to match the noun it describes.

Here, léger means light in the food sense: not too heavy, rich, or filling.

So un dessert léger is a dessert that feels lighter to eat, maybe less rich than something very heavy or creamy.

French léger can also mean physically light in other contexts, but in a food sentence like this, the meaning is clearly light to eat.

Because Noël here is used as a proper name referring to Christmas, and proper names usually do not take an article in this kind of expression.

So:

• le réveillon de Noël = the Christmas Eve celebration
• la fête de Noël = the Christmas celebration

You would use du only if there were a de + le combination. But here there is no article before Noël, so it stays de Noël.

Yes. French often uses the present tense to talk about something planned or expected, especially when the time is clear from context.

Since Pour le réveillon de Noël sets a future occasion, ma tante prépare une dinde et un dessert léger can naturally mean something like:

• My aunt is making a turkey and a light dessert for Christmas Eve
• My aunt will prepare a turkey and a light dessert for Christmas Eve

French does not always need a separate future tense when the context already makes the timing clear.