Сегодня я приготовлю ужин дома.

Приготовлю is the 1st person singular future form of приготовить, a perfective verb.

In Russian, perfective verbs form the future with a single word:

• я приготовлю = I will prepare / I will cook

This is different from English, where future usually needs will.

The perfective verb приготовить suggests a completed result: the dinner will get made.

This is a very common Russian aspect question.

• приготовлю = I will cook/prepare and the focus is on the result or completion
• буду готовить = I will be cooking / I will cook and the focus is more on the process, duration, or repeated activity

So:

• Сегодня я приготовлю ужин дома.
  = Today I’ll make dinner at home.
  This sounds like a plan with a finished outcome.

• Сегодня я буду готовить ужин дома.
  = Today I’ll be cooking dinner at home.
  This emphasizes the activity itself a bit more.

Both can be correct, but приготовлю is very natural when you mean you will actually get dinner prepared.

It is in the accusative case, because it is the direct object of the verb.

The reason it looks unchanged is that ужин is:

• masculine
• singular
• inanimate

For many masculine inanimate nouns in Russian, the accusative singular looks the same as the nominative singular.

So:

• nominative: ужин
• accusative: ужин

Even though the form is the same, the grammatical role is different.

Дома usually means at home.

It is a very common adverb-like word in Russian:

• Я дома = I’m at home
• Работаю дома = I work at home
• Приготовлю ужин дома = I’ll cook dinner at home

В доме usually means in the house/building, focusing more on the physical building itself.

So:

• дома = at home
• в доме = in the house

In this sentence, дома is the natural choice.

Russian word order is much more flexible than English word order.

Putting сегодня first is very natural because it sets the time frame right away:

• Сегодня я приготовлю ужин дома.

This is like saying:

• Today, I’ll cook dinner at home.

You could also say:

• Я сегодня приготовлю ужин дома.

That also works. The difference is mostly one of emphasis and information flow, not basic meaning.

Yes. Russian allows several word orders, although some are more neutral than others.

For example:

• Сегодня я приготовлю ужин дома.
  Neutral and natural.
• Я сегодня приготовлю ужин дома.
  Also neutral.
• Сегодня я дома приготовлю ужин.
  Possible, with a bit more focus on at home.
• Ужин я сегодня приготовлю дома.
  Stronger emphasis on dinner.

So the sentence can move around, but the most natural version often depends on what you want to emphasize.

Russian often omits subject pronouns when they are clear from the verb form.

Since приготовлю already tells us the subject is I, you could say:

• Сегодня приготовлю ужин дома.

That is perfectly possible in conversation.

However, я is often kept:

• for clarity
• for contrast
• for emphasis
• simply because it sounds natural in context

So both are possible:

• Сегодня я приготовлю ужин дома.
• Сегодня приготовлю ужин дома.

Ужин means the evening meal.

Depending on the speaker and the variety of English, it may be translated as:

• dinner
• supper

In many learning materials, ужин is usually given as dinner.

Related words:

• завтрак = breakfast
• обед = lunch / dinner (midday meal, depending on context)
• ужин = dinner / supper

Russian has no articles.

So Russian does not normally have separate words corresponding to English a, an, or the.

That means ужин can mean:

• dinner
• the dinner
• a dinner

The exact meaning comes from context, not from an article.

In this sentence, English naturally uses just dinner:

• Today I’ll cook dinner at home.

Not exactly.

• готовить = to cook, to prepare; often imperfective, process-oriented
• приготовить = to prepare, to get ready, to cook and have it completed; perfective

In food contexts, both can relate to cooking, but приготовить often highlights that something gets prepared successfully.

So in this sentence, приготовлю ужин strongly suggests:

• I will make dinner
• I will get dinner ready

The main stress is:

• сегОдня
• я
• приготовлЮ
• Ужин
• дОма

A rough pronunciation guide:

• сегОдня ≈ sye-VOD-nya
• приготовлЮ ≈ pree-ga-ta-VLYU
• Ужин ≈ OO-zhin
• дОма ≈ DO-ma

The full sentence:

• Сегодня я приготовлю ужин дома.

Listening to native audio is especially useful here, because Russian vowel reduction and stress matter a lot.

Usually it means that today, at some point, the speaker will make the evening meal, so in real life that normally implies later today / tonight.

Because ужин is the evening meal, the sentence naturally points to the later part of the day, even though the word сегодня literally just means today.

So the practical meaning is something like:

• Today I’ll cook dinner at home
• or more naturally in context, I’ll cook dinner at home tonight

depending on how it is translated.