Dziękuję za pomoc.

A natural approximation for an English speaker is:

jen-KOO-yeh za POH-mots

A few details:

• Dzię- starts with a very soft dź sound, something like the j in jeans, but softer.
• -kuję sounds roughly like KOO-yeh.
• ę in dziękuję is often not pronounced as a full nasal vowel in normal speech. Before k, it sounds close to en/em.
• pomoc is pronounced roughly POH-mots, with c sounding like ts.

The stress is on the second-to-last syllable in dziękuję:
dzię-KU-ję

Dziękuję is the 1st person singular form of the verb dziękować, so grammatically it means I thank.

Polish often leaves out the subject pronoun when it is already clear from the verb form, so:

• Dziękuję = I thank / thank you

You do not need to say Ja dziękuję unless you want extra emphasis.

Because the verb dziękować is commonly used with za + accusative when you specify what you are thanking someone for.

So the pattern is:

• dziękować za coś = to thank for something

Examples:

• Dziękuję za pomoc.
• Dziękuję za prezent.
• Dziękuję za informację.

So za here means for.

Pomoc is in the accusative case, because it follows za in this expression.

The noun pomoc is feminine, and its forms include:

• nominative: pomoc
• accusative: pomoc
• genitive: pomocy

So in this sentence, the accusative happens to look the same as the basic dictionary form.

Because some Polish nouns have the same form in more than one case.

For pomoc, the nominative and accusative singular are both pomoc, so even though the case changes, the word itself does not visibly change in this sentence.

This is normal in Polish and something you will see often.

It is neutral and polite, so you can use it in both formal and informal situations.

You can say it:

• to a friend
• to a colleague
• to a stranger
• in a shop
• in an email

If you want to sound warmer or stronger, you can say:

• Bardzo dziękuję za pomoc. = Thank you very much for the help
• Dziękuję bardzo za pomoc. = same idea

Yes. Dziękuję by itself is extremely common and natural.

Use:

• Dziękuję when the reason is already obvious
• Dziękuję za pomoc when you want to state specifically what you are thanking someone for

So both are correct:

• Dziękuję.
• Dziękuję za pomoc.

The longer version is simply more specific.

Both are used to thank someone, but the tone is different.

• Dziękuję = standard, polite, neutral
• Dzięki = more casual, like Thanks

So:

• use Dziękuję anywhere
• use Dzięki mainly with friends, peers, or in informal situations

You can also say:

• Dzięki za pomoc = casual Thanks for the help

Yes, both are correct and common.

They both mean essentially Thank you very much for the help.

The difference is only in emphasis and rhythm:

• Bardzo dziękuję za pomoc sounds slightly more deliberate
• Dziękuję bardzo za pomoc is also very natural and common

Both are good choices.

Yes. They are different grammatical forms of the same noun.

• pomoc = nominative/accusative singular
• pomocy = usually genitive, dative, or locative singular, depending on the sentence

For example:

• Dziękuję za pomoc. = accusative
• Potrzebuję pomocy. = genitive, I need help

So if you said Dziękuję za pomocy, that would be incorrect.

Common replies include:

• Proszę. = You’re welcome
• Proszę bardzo. = You’re very welcome
• Nie ma za co. = Don’t mention it / No need to thank me
• Cała przyjemność po mojej stronie. = more formal, The pleasure is mine

The most common everyday reply is probably Nie ma za co or Proszę.