Odeślę towar pod warunkiem, że etykieta zwrotna będzie gotowa.

Odeślę means I will send back / I will return.

It comes from the verb odesłać:

• o- / od- adds the idea of back / away
• słać / wysłać is about sending

So:

• wyślę = I will send
• odeślę = I will send back

In this sentence, odeślę is used because the item is being returned, not just sent somewhere for the first time.

Because the speaker is talking about something that will happen later.

Odeślę is the 1st person singular future of a perfective verb. In Polish, perfective verbs usually use a simple form to express the future:

• odesłać = perfective, to send back as a completed action
• odeślę = I will send back

This is very common in Polish:

• zrobię = I will do
• napiszę = I will write
• odeślę = I will send back

There is no separate word like English will here.

Because towar is the direct object of odeślę, so it is in the accusative case.

For a masculine inanimate noun like towar, the accusative singular is the same as the nominative singular:

• nominative: towar
• accusative: towar

So the form does not change.

Compare:

• Mam towar. = I have the goods / merchandise.
• Odeślę towar. = I will send back the goods / merchandise.

If it were a masculine animate noun, the accusative would often look different.

It can mean goods, merchandise, product, item being sold or shipped, depending on context.

In this sentence, towar often sounds a bit like the merchandise / the item / the goods being returned. Polish often uses singular nouns in places where English might prefer the goods or the item.

So depending on the situation, the natural English meaning could be:

• I’ll return the item...
• I’ll send the goods back...
• I’ll return the merchandise...

It means provided that, on condition that, or more simply as long as.

Breakdown:

• pod = under
• warunek = condition
• pod warunkiem = literally under the condition
• że = that

So pod warunkiem, że... is a fixed expression meaning:

• provided that...
• on the condition that...

Examples:

• Pomogę ci pod warunkiem, że będziesz szczery.
  = I’ll help you provided that you are honest.
• Możesz wyjść pod warunkiem, że wrócisz wcześnie.
  = You can go out provided that you come back early.

Because the preposition pod here requires the instrumental case.

The basic noun is:

• warunek = condition

In the expression pod warunkiem, it changes to instrumental:

• warunkiem = under the condition

This whole phrase is fixed and very common, so it is worth learning as one chunk:

• pod warunkiem, że...

Because in Polish, a subordinate clause introduced by że normally takes a comma.

Here the main clause is:

• Odeślę towar = I will send back the goods

The subordinate clause is:

• że etykieta zwrotna będzie gotowa = that the return label will be ready

So the comma separates the two parts:

• Odeślę towar pod warunkiem, że etykieta zwrotna będzie gotowa.

This is standard Polish punctuation.

Because the speaker is talking about a future condition.

• jest gotowa = is ready
• będzie gotowa = will be ready

The meaning is: I will send back the goods, provided that the return label will be ready / is ready by then.

In natural English, we often say:

• ...provided that the return label is ready

But in Polish, using the future here is very normal because the readiness is understood as a future situation.

Because gotowa agrees with etykieta, which is a feminine singular noun.

Polish adjectives and adjective-like words must match the noun in:

• gender
• number
• case

Here:

• etykieta = feminine singular
• so gotowa must also be feminine singular

Compare:

• towar jest gotowy = the product/item is ready
• etykieta jest gotowa = the label is ready
• dokumenty są gotowe = the documents are ready

It means return label.

• etykieta = label
• zwrotna = return / for return

So this is the label used to send something back.

A very similar phrase is:

• etykieta wysyłkowa = shipping label

In online shopping and returns, etykieta zwrotna is the standard phrase for the label you attach when returning an item.

Because in Polish, adjectives usually come after or before nouns depending on style, meaning, and convention, but in many ordinary noun phrases both orders are possible, with one often sounding more natural.

Here, etykieta zwrotna is a very normal order and sounds like a standard term: return label.

You may also see adjective + noun order in Polish, but with many practical labels and classifications, noun + adjective is common and natural.

The most important thing for a learner is:

• etykieta zwrotna is a standard, correct phrase
• zwrotna agrees with etykieta in gender, number, and case

Yes, but the nuance is a little different.

• jeśli = if
• pod warunkiem, że = provided that / on condition that

So:

• Odeślę towar, jeśli etykieta zwrotna będzie gotowa.
  = I’ll send the goods back if the return label is ready.
• Odeślę towar pod warunkiem, że etykieta zwrotna będzie gotowa.
  = I’ll send the goods back provided that the return label is ready.

The second version sounds a bit more formal and more clearly expresses a condition that must be met.

Yes. Polish word order is fairly flexible, although some versions sound more neutral than others.

The original sentence:

• Odeślę towar pod warunkiem, że etykieta zwrotna będzie gotowa.

You could also say:

• Pod warunkiem, że etykieta zwrotna będzie gotowa, odeślę towar.

Both are correct.

The original version is probably the most neutral in everyday use. Moving pod warunkiem, że... to the front puts more emphasis on the condition.

It is natural, correct Polish and sounds slightly neutral-to-formal because of pod warunkiem, że.

If you wanted a slightly more everyday tone, you might say:

• Odeślę towar, jeśli etykieta zwrotna będzie gotowa.

But the original sentence is absolutely normal, especially in customer service, shipping, returns, or business communication.