Nagroda jest duża.

Because nagroda is a feminine singular noun, and the adjective has to agree with it.

• duży = masculine singular
• duża = feminine singular
• duże = neuter singular

So:

• duży dom = a big house
• duża nagroda = a big prize
• duże okno = a big window

In Nagroda jest duża, both nagroda and duża are feminine singular.

Usually, yes. In Polish, nouns ending in -a are very often feminine, and nagroda is one of them.

So learners often use the ending of the noun as a first clue:

• kobieta = woman → feminine
• książka = book → feminine
• nagroda = prize/award → feminine

There are some exceptions in Polish, but for nagroda, feminine is correct.

It is in the nominative singular.

That is because nagroda is the subject of the sentence: the thing being talked about.

The adjective duża is also in the nominative singular feminine, because it describes the subject and agrees with it.

So the structure is:

• Nagroda = subject, nominative singular
• jest = is
• duża = predicate adjective agreeing with the subject

In normal standard Polish, jest is needed here.

• Nagroda jest duża. = standard, complete sentence

Unlike in some other Slavic languages, Polish normally keeps the present-tense form of to be in sentences like this.

You may sometimes hear shortened or elliptical styles, especially in headlines, notes, or very informal speech, but for a learner the correct standard version is:

• Nagroda jest duża.

Yes, but it changes the emphasis.

The most neutral word order is:

• Nagroda jest duża.

If you say:

• Duża jest nagroda.

it sounds more marked or stylistic, as if you are emphasizing big.

Polish word order is more flexible than English, but different orders often shift focus or sound less neutral. For everyday learning, the original sentence is the safest pattern.

Because Polish does not have articles like English a/an and the.

So Nagroda jest duża could mean, depending on context:

• The prize is big
• A prize is big
• sometimes more naturally in context, The award is large

Context tells you whether the meaning is definite or indefinite.

This is very normal in Polish, so you do not need to add anything to translate a or the directly.

A simple learner-friendly pronunciation guide:

• nagroda ≈ na-GRO-da
• jest ≈ yest
• duża ≈ DOO-zha

A few useful sound notes:

• j in Polish sounds like English y in yes
• rz and ż usually sound like the zh sound in measure
• u sounds like oo in food

So the whole sentence sounds roughly like:

na-GRO-da yest DOO-zha

Polish stress usually falls on the second-to-last syllable of a word.

So:

• nagroda → stress on gro: na-GRO-da
• duża → stress on du: DU-zha
• jest has only one syllable, so it is stressed naturally if needed

That regular stress pattern is one of the helpful things about Polish pronunciation.

Its basic meaning is big or large.

Depending on context, it can sometimes also feel like:

• considerable
• substantial
• great in size or amount

For example:

• duża nagroda can mean a physically large prize, but more often it means a big/significant prize, such as one of high value or importance.

So the exact English word may vary a little depending on context.

Yes, but the meaning changes slightly.

• duża = big, large
• wielka = great, huge, important, grand

So:

• Nagroda jest duża. = The prize is big/large.
• Nagroda jest wielka. = The prize is great/huge/impressive.

Sometimes both work, but wielka often sounds stronger or more expressive.

No. Jest is the third person singular form of być (to be).

Here it matches nagroda, which is singular.

Useful present-tense forms:

• jestem = I am
• jesteś = you are
• jest = he/she/it is
• jesteśmy = we are
• jesteście = you are
• są = they are

So if the noun were plural, you would not use jest:

• Nagrody są duże. = The prizes are big.

The plural would be:

Nagrody są duże.

Changes:

• nagroda → nagrody = prizes/awards
• jest → są = are
• duża → duże = big, plural form here

This is a useful example of agreement in Polish: the noun, verb, and adjective all change to match number.