Porządek obrad jest krótki.

It is a set phrase meaning the agenda, the order of business, or the agenda of a meeting/session.

Word for word, it is something like:

• porządek = order
• obrad = of the deliberations / of the proceedings

So the whole phrase is more natural in English as the agenda rather than a literal order of debates.

Because obrad is the genitive plural form of obrady.

The noun obrady means deliberations, proceedings, or session discussions, and in the expression porządek obrad, Polish uses a structure like:

• porządek czego? = the order of what?
• obrad = of the proceedings / of the deliberations

So porządek obrad literally means order of proceedings.

This is very common in Polish: one noun is followed by another noun in the genitive case to show a relationship like of ....

Porządek is in the nominative singular, because it is the subject of the sentence.

In Porządek obrad jest krótki:

• porządek obrad = the subject
• jest = is
• krótki = short

So the sentence structure is basically:

[subject] + [is] + [adjective]

Because krótki has to agree with porządek, and porządek is:

• masculine
• singular
• nominative

So the adjective must also be masculine singular nominative:

• krótki = masculine singular
• krótka = feminine singular
• krótkie = neuter singular or non-masculine personal plural

That is why krótki is the correct form here.

In the present tense, Polish usually does use jest in sentences like this.

So:

• Porządek obrad jest krótki. = The agenda is short.

Leaving out jest would sound unusual or incomplete in normal standard Polish prose.

Polish can sometimes omit forms of to be in special styles, headings, notes, or very informal contexts, but for a normal sentence, jest is the expected form.

It can mean both, depending on context.

Here, krótki is best understood as:

• short
• brief
• not long

Since porządek obrad means agenda, the natural meaning is that the agenda has few items or will not take long.

So in English, The agenda is short or The agenda is brief both work.

Yes, it is natural and correct, especially in a formal or meeting-related context.

It sounds like something you might hear in:

• a meeting
• a committee session
• a council session
• a formal discussion

In everyday conversation, people might also say things like:

• Agenda jest krótka.
• Mamy krótki porządek obrad. = We have a short agenda.

But the original sentence is perfectly normal.

Yes, Polish word order is fairly flexible, although the original order is the most neutral.

Neutral:

• Porządek obrad jest krótki.

Other possible orders can add emphasis, for example:

• Krótki jest porządek obrad.
  This sounds more marked, emphasizing short.

• Krótki porządek obrad jest dziś.
  Possible only in a broader context, but less neutral.

For a learner, the safest version is the original:

Porządek obrad jest krótki.

A rough pronunciation guide is:

po-ZHON-dek OB-rad yest KROOT-kee

A few helpful notes:

• rz often sounds like the zh in measure
• ą is a nasal vowel; before some consonants it may sound a bit like on
• j is pronounced like English y
• ó sounds like Polish u
• Polish stress is usually on the second-to-last syllable of each word:
  • poRZĄdek
  • Obrad
  • jest
  • KRÓTki

The exact pronunciation is a bit more subtle than the English approximation, but that guide is enough to get started.

Because languages do not always match word-for-word.

Polish expresses the idea as order of proceedings/deliberations, where obrady is a plural noun. English often compresses that idea into the singular noun agenda.

So:

• Polish: porządek obrad = literally order of proceedings
• Natural English: agenda

This is a good example of why translating phrase by phrase is often better than translating each single word mechanically.

Yes, in many contexts Polish also uses agenda, especially in modern or business language.

For example:

• Agenda jest krótka.

That is also correct. But there is a difference in tone:

• porządek obrad = more traditional, formal, institutional
• agenda = common, modern, sometimes more international/business-like

So Porządek obrad jest krótki sounds slightly more official.

The pattern is:

noun phrase + jest + adjective

More specifically:

• Porządek obrad = noun phrase in the nominative, acting as the subject
• jest = 3rd person singular of być (to be)
• krótki = predicate adjective agreeing with the subject

So it works like:

• Film jest długi. = The film is long.
• Plan jest prosty. = The plan is simple.
• Porządek obrad jest krótki. = The agenda is short.

This is a very useful sentence pattern in Polish.