Oględziny są dzisiaj.

Because oględziny is grammatically plural.

Even if English might translate it as a single event like the inspection or the viewing, Polish treats oględziny as a plural-only noun in normal usage. That means it takes plural verb forms:

• Oględziny są dzisiaj. = The inspection/viewing is today.
• not Oględziny jest dzisiaj.

So the grammar follows the Polish form, not the English translation.

Usually, yes. Oględziny is commonly used as a pluralia tantum noun, meaning a noun that normally appears only in the plural.

This is similar to how English has nouns like scissors or pants, which are grammatically plural even when they refer to one thing.

So in Polish you typically say:

• te oględziny = this inspection / these inspections
• oględziny były krótkie = the inspection was short

The singular oględzina exists much less commonly and is not what learners usually need first.

Oględziny means an inspection, examination, or viewing, depending on context.

Possible contexts include:

• a property viewing
• a technical inspection
• a police or forensic examination
• a medical or visual examination of something

So the exact English translation depends on the situation. The grammar of the Polish sentence stays the same.

Because dzisiaj already means today and works as an adverb.

In English, today also does not need a preposition:

• The inspection is today.

In Polish:

• dzisiaj = today
• dziś = today as well, just a shorter form

So:

• Oględziny są dzisiaj.
• Oględziny są dziś.

Both are correct.

It is in the nominative plural, because it is the subject of the sentence.

Structure:

• Oględziny = subject, nominative plural
• są = are
• dzisiaj = adverb, today

So this is a very basic subject + verb + time expression sentence.

Yes. Polish word order is more flexible than English.

These are all possible:

• Oględziny są dzisiaj.
• Dzisiaj są oględziny.
• Dzisiaj oględziny są. — grammatically possible, but less neutral

The most natural versions are the first two. The difference is mainly emphasis:

• Oględziny są dzisiaj. → emphasis on today
• Dzisiaj są oględziny. → emphasis on today right from the start, often useful if answering When are they?

They both mean today.

• dzisiaj is slightly fuller
• dziś is shorter and very common

In most situations, they are interchangeable:

• Oględziny są dzisiaj.
• Oględziny są dziś.

Both sound natural. Choosing one over the other is usually just a matter of style, rhythm, or personal preference.

A rough pronunciation guide:

• oględziny ≈ oh-glen-JEE-nih
• są ≈ sow with a nasal vowel
• dzisiaj ≈ JEE-shai

A few useful notes:

• Stress in Polish usually falls on the second-to-last syllable:
  • o-glę-DZI-ny
  • DZI-siaj
• The ę in oględziny is not pronounced like a fully nasal English sound; before consonants it often sounds closer to en/em.
• dz / dź / dzi sounds can be tricky for English speakers, so dzisiaj may take practice.

Because Polish does not use articles like a, an, and the.

So oględziny can mean:

• the inspection
• an inspection
• just inspection/viewing

The exact meaning comes from context.

That is why Oględziny są dzisiaj can mean something like:

• The inspection is today
• The viewing is today

without any separate word for the.

Yes, it is natural, especially if the context is already known.

It sounds like a straightforward statement such as:

• The inspection is today.
• The viewing is today.

In real conversation, people might also say:

• Oględziny są dziś.
• Dzisiaj są oględziny.
• Mamy oględziny dzisiaj. = We have an inspection/viewing today.

But the original sentence is perfectly normal and clear.

Yes. That is one of the most important things to understand here.

Grammatically, oględziny is plural, so Polish uses plural agreement:

• Oględziny są...
• Oględziny były...

But in meaning, it can refer to a single inspection or viewing event.

So you should separate:

• grammar → plural
• meaning → often singular in English

This is why the sentence may translate naturally as The inspection is today, even though Polish literally uses a plural noun and plural verb.